3M Window Film Safety and Security Window Film Specification

MasterFormat: 95

Download this Safety and Security Window Film Specification for WORD | WP | RTF | TEXT

Find over 500 more construction specifications | Arcat.com

SECTION 08873

SAFETY AND SECURITY WINDOW FILM

** NOTE TO SPECIFIER ** 3M Window Film; Safety and Security Window Film, Anti-Graffiti Film.
This section is based on the products of 3M Window Film, which is located at:
3M Center Bldg. 0235.
St. Paul, MN 55144-1000.
Toll Free: 800-480-1704
Tel: 651-733-2222.
Web: www.3m.com/windowfilm.
As an industry leader in both adhesive and film manufacturing, 3M combines these technologies to provide state of the art Safety and Security Window Films to residential, commercial, and government sectors. 3M Safety and Security Window films provide an added measure of protection for a variety of purposes including safety glazing applications, blast mitigation, protection against wind borne debris, a deterrent against forced entry, and fragment retention during seismic events. All of 3M Safety and Security films provide up to 99 percent protection against the sun's destructive ultraviolet rays, protecting valuable furnishings from fading. 3M Safety and Security Films are also available with sun control properties to help reduce glare, improve comfort, add privacy, and save on energy costs. 3M Safety and Security Window Films provide a practical, cost effective solution to help protect people, property, and the continuity of operations that would otherwise be at a higher risk with conventional glass.
3M Anti-Graffiti films help protect the glass surface against the most common methods of vandalism, such as glass etchants, gauging, abrasion, while reducing the ultraviolet light that normally would enter through the window by 99 percent. They have a durable abrasion resistant hardcoat on the outer surface and an adhesive that is designed to not leave residue on the glass when replacement of the film is needed due to vandalism.

PART 1

GENERAL

1.1

SECTION INCLUDES

** NOTE TO SPECIFIER ** Delete items below not required for project.

Safety and security window film.

Anti-graffiti window film.

1.2

RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

Section 08500 - Windows: Windows to receive solar control film.

Section 08600 - Skylights: Glass Skylights to receive solar control film.

Section 08800 - Glazing: General Glazing applications to receive solar control film.

Section 08900 - Glazed Curtain Walls: Curtain Walls to receive solar control film.

1.3

REFERENCES

** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.

ASHRAE - American Society for Heating, Refrigeration, and Air Conditioning Engineers; Handbook of Fundamentals.

ASTM International (ASTM):

ASTM D 882 - Standard Test Method for Tensile Properties of Thin Plastic Sheeting.

ASTM D 1004 - Standard Test Method for Tear Resistance (Graves Tear) of Plastic Film and Sheeting.

ASTM D 1044 - Standard Method of Test for Resistance of Transparent Plastics to Surface Abrasion (Taber Abrader Test).

ASTM D 2582 - Standard Test Method for Puncture-Propagation Tear Resistance of Plastic Film and Thin Sheeting.

ASTM D 4830 - Standard Test Methods for Characterizing Thermoplastic Fabrics Used in Roofing and Waterproofing.

ASTM E 84 - Standard Method of Test for Surface Burning Characteristics of Building Materials.

ASTM E 903 - Standard Methods of Test for Solar Absorbance, Reflectance and Transmittance of Materials Using Integrating Spheres.

ASTM E 1886 - Standard Test Method for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials.

ASTM E 1996 - Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors and Impact Protective Systems Impacted by Windborne Debris in Hurricanes.

ANSI Z97.1 - American National Standard for Safety Glazing Materials Used in Buildings - Safety Performance Specifications and Methods of Test.

Consumer Products Safety Commission 16 CFR, Part 1201 - Safety Standard for Architectural Glazing Materials.

GSA Standard Test for Glazing and Glazing Systems Subject to Airblast Loadings.

ISO 16933, International Standard for Glass in Building: Explosion-resistant security glazing - Test and classification for arena air-blast testing.

Underwriters Laboratories Inc. (UL): UL 972 - Burglary Resisting Glazing Material.

1.4

PERFORMANCE REQUIREMENTS

Flammability: Surface burning characteristics when tested in accordance ASTM E 84:

Flame Spread Index: 25, maximum.

Smoke Developed Index: 450, maximum.

Abrasion Resistance: Film must have a surface coating that is resistant to abrasion such that, less than 5 percent increase of transmitted light haze will result in accordance with ASTM D 1044 using 50 cycles, 500 grams weight, and the CS10F Calbrase Wheel.

1.5

SUBMITTALS

Submit under provisions of Section 01300.

Product Data: Manufacturer's data sheets on each product to be used, including:

Preparation instructions and recommendations.

Storage and handling requirements and recommendations.

Installation methods.

** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.

Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.

Verification Samples: For each finish product specified, two samples representing actual product, color, and patterns.

Performance Submittals: Provide laboratory data of emissivity and calculated window U-Factors for various outdoor temperatures based upon established calculation procedure defined by the ASHRAE Handbook of Fundamentals, Chapter 29, or Lawrence Berkeley Laboratory Window 5.2 Computer Program.

1.6

QUALITY ASSURANCE

Manufacturer Qualifications: All primary products specified in this section will be supplied by a single manufacturer with a minimum of ten years experience.

Installer Qualifications: All products listed in this section are to be installed by a single installer with a minimum of five years demonstrated experience in installing products of the same type and scope as specified.

Provide documentation that the installer is authorized by the Manufacturer to perform Work specified in this section.

** NOTE TO SPECIFIER ** Insert number of properties required.

Provide a commercial building reference list of 5 properties where the installer has applied window film. This list will include the following information:

Name of building.

The name and telephone number of a management contact.

Type of glass.

Type of film.

Amount of film installed.

Date of completion.

** NOTE TO SPECIFIER ** Delete the next paragraph if a Glass Stress Analysis is not required.

Provide a Glass Stress Analysis of the existing glass and proposed glass/film combination as recommended by the film Manufacturer.

** NOTE TO SPECIFIER ** Delete the next paragraph if an Energy Savings Calculation is not required.

Provide an application analysis to determine available energy cost reduction and savings.

** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.

Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.

Finish areas designated by Architect.

Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.

Refinish mock-up area as required to produce acceptable work.

1.7

DELIVERY, STORAGE, AND HANDLING

Store products in manufacturer's unopened packaging until ready for installation.

Store and dispose of hazardous materials, and materials contaminated by hazardous materials, in accordance with requirements of local authorities having jurisdiction.

1.8

PROJECT CONDITIONS

Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

1.9

WARRANTY

At project closeout, provide to Owner or Owners Representative an executed current copy of the manufacturer's standard limited warranty against manufacturing defect, outlining its terms, conditions, and exclusions from coverage.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Anti-graffiti films are warranted for a period of 1 year when installed outdoors and for a period of 10 years when installed indoors.

PART 2

PRODUCTS

2.1

MANUFACTURERS

Acceptable Manufacturer: 3M Window Film , which is located at: 3M Center Bldg. 0235-02-S-27 ; St. Paul, MN 55144-1000; Toll Free Tel: 800-480-1704; Tel: 651-733-2222; Email: request info; Web: www.3m.com/windowfilm

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

Substitutions: Not permitted.

Requests for substitutions will be considered in accordance with provisions of Section 01600.

** NOTE TO SPECIFIER ** Delete the entire next article if not required.

2.2

CLEAR MICROLAYERED SAFETY AND SECURITY WINDOW FILM

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra S150 (SCLARL150) film is not required.

Clear Microlayered Safety and Security Window Film: 3M Ultra S150 Safety and Security Window Film. Optically clear micro-layered polyester film, with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film is clear and will not contain dyed polyester. Film contains at least fourteen micro-layers.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 2.0 mils (0.05 mm), comprised of 14 micro-layers.

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 60 lbs.

Tear Resistance (ASTM D 1004): Greater than 350 lbs.

Puncture Propagation Tear (ASTM D 2582): 2.0 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission Across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 87 percent.

Visible Reflection (ASTM E 903): Not more than 11 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.82.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category I (150 ft.-lbs).

Safety Rating (ANSI Z97.1): Class B, Unlimited Size.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra S400 (SCLARL400) film is not required.

Clear Microlayered Safety and Security Window Film: 3M Ultra S400 Safety and Security Window Film. Optically clear micro-layered polyester film, with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film is clear and will not contain dyed polyester. Film contains at least twenty-eight micro-layers.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 4.0 mils (0.1 mm), comprised of 28 micro-layers.

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission Across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 86 percent.

Visible Reflection (ASTM E 903): Not more than 11 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.79.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

Film shall pass impact of Medium Large Missile "C" and withstand subsequent pressure cycling (per ASTMs E 1996 and E 1886) at 70 psf Design Pressure with use of 3M Impact Protection Adhesive attachment system.

Film shall pass impact of Small Missile "A" and withstand subsequent pressure cycling (per ASTMs E 1996 and E 1886) at 50 psf Design Pressure with use of 3M Impact Protection Adhesive attachment system.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra S600 (SCLARL600) film is not required.

Clear Microlayered Safety and Security Window Film: 3M Ultra S600 Safety and Security Window Film. Optically clear micro-layered polyester film, with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film is clear and will not contain dyed polyester. Film contains at least forty-two micro-layers.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 6.0 mils (0.15 mm), comprised of 42 micro-layers.

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 180 lbs.

Tear Resistance (ASTM D 1004): Greater than 1,150 lbs.

Puncture Propagation Tear (ASTM D 2582): 19.2 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission Across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 84 percent.

Visible Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.78.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection: Film shall pass impact of Medium Large Missile "C" and withstand subsequent pressure cycling (per ASTMs E 1996 and E 1886) at 50 psf Design Pressure with use of 3M Impact Protection Adhesive or 3M Impact Protection Profile attachment system.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

GSA Rating with minimum blast pressure and impulse of 11 psi and 55 psi.msec, respectively (ISO 16933 blast level "EXV-25"): 3A.

GSA Rating with minimum blast pressure and impulse of 10 psi and 89 psi.msec, respectively (GSA blast level "D"): 3B.

** NOTE TO SPECIFIER ** Delete the entire next article if not required.

2.3

MICROLAYERED SAFETY AND SECURITY WINDOW FILM WITH SUN CONTROL

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra Prestige PR S70 film is not required.

Micro-layered Safety and Security Window Film with Sun Control: 3M Ultra Prestige PR S70 Safety and Security Window Film with Sun Control. Optically clear polyester film comprised of 28 micro-layers, laminated to different clear multi-layered polyester film containing at least 220 layers with a pressure sensitive adhesive on one side and durable acrylic abrasion resistant coating on the other side. Films contain no metals, but so contain infrared-absorbing carbon, metal oxide particles, or both.

Physical / Mechanical Performance Properties:

Film Color: Clear with at least 220 layers.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 69 percent.

Visible Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.50.

TSER - 60 Degree Angle - 59 percent.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

GSA Rating with minimum blast pressure and impulse of 7 psi and 36 psi.msec, respectively (ISO 16933 blast level "EXV-33"): 2.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra Prestige PR S50 film is not required.

Micro-layered Safety and Security Window Film with Sun Control: 3M Ultra Prestige PR S50 Safety and Security Window Film with Sun Control. Optically clear polyester film comprised of 28 micro-layers, laminated to different clear multi-layered polyester film containing at least 220 layers with a pressure sensitive adhesive on one side and durable acrylic abrasion resistant coating on the other side. Films contain no metals, but so contain infrared-absorbing carbon, metal oxide particles, or both.

Physical / Mechanical Performance Properties:

Film Color: Clear with at least 220 layers.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 50 percent.

Visible Reflection (ASTM E 903): Not more than 8 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.44.

TSER - 60 Degree Angle - 63 percent.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

GSA Rating with minimum blast pressure and impulse of 7 psi and 36 psi.msec, respectively (ISO 16933 blast level "EXV-33"): 2.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra Silver S20 (S20SIAR400) film is not required.

Micro-layered Safety and Security Window Film with Sun Control: 3M Ultra Silver S20 Safety and Security Window Film with Sun Control. Optically clear polyester film comprised of 28 micro-layers, laminated to a metalized multi-layered polyester film. Additional film layer is added for color and performance, with a durable abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film color is derived from the metal coating and the product will not contain dyed polyester.

Physical / Mechanical Performance Properties:

Film Color: Tinted - Derived from metal coatings.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 19 percent.

Visible Reflection (ASTM E 903): Not more than 58 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.23.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra Netural S35 (S35NEAR400) film is not required.

Micro-layered Safety and Security Window Film with Sun Control: 3M Ultra Neutral S35 Safety and Security Window Film with Sun Control. Optically clear polyester film comprised of 28 micro-layers, laminated to a metalized multi-layered polyester film. Additional film layer is added for color and performance, with a durable abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film color is derived from the metal coating and the product will not contain dyed polyester.

Physical / Mechanical Performance Properties:

Film Color: Tinted - Derived from metal coatings.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 36 percent.

Visible Reflection (ASTM E 903): Not more than 20 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.44.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra Neutral S50 (S50NEAR400) film is not required.

Micro-layered Safety and Security Window Film with Sun Control: 3M Ultra Neutral S50 Safety and Security Window Film with Sun Control. Optically clear polyester film comprised of 28 micro-layers, laminated to a metalized multi-layered polyester film. Additional film layer is added for color and performance, with a durable abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film color is derived from the metal coating and the product will not contain dyed polyester.

Physical / Mechanical Performance Properties:

Film Color: Tinted - Derived from metal coatings.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 52 percent.

Visible Reflection (ASTM E 903): Not more than 15 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.56.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

** NOTE TO SPECIFIER ** Delete the next paragraph if Ultra NV S25 (S25NVAR400) film is not required.

Micro-layered Safety and Security Window Film with Sun Control: 3M Ultra Night Vision S25 Safety and Security Window Film with Sun Control. Optically clear polyester film comprised of 28 micro-layers, laminated to a metalized multi-layered polyester film. Additional film layer is added for color and performance, with a durable abrasion resistant coating over one surface and a pressure sensitive adhesive on the other. The film color is derived from the metal coating and the product will not contain dyed polyester.

Film Type: Ultra NV S25.

Physical / Mechanical Performance Properties:

Film Color: Tinted - Derived from metal coatings.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 30,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 120 lbs.

Tear Resistance (ASTM D 1004): Greater than 780 lbs.

Puncture Propagation Tear (ASTM D 2582): 7.5 lbs.

Young's Modulus (ASTM D 882): 500 kpsi nominal.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 27 percent.

Visible Reflection (ASTM E 903): Not more than 28 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.38.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

Film shall pass impact of Medium Large Missile "C" and withstand subsequent pressure cycling (per ASTM E 1996 and E 1886) at 70 psf Design Pressure with use of 3M Impact Protection Adhesive attachment system.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

** NOTE TO SPECIFIER ** Delete the entire next article if not required.

2.4

CLEAR SAFETY AND SECURITY WINDOW FILM

** NOTE TO SPECIFIER ** Delete the next paragraph if Safety S40 (SH4CLARL) film is not required.

Clear Safety and Security Window Film: 3M Safety S40 (SH4CLARL) Safety and Security Window Film. Optically clear polyester film with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other. The film may be laminated to other clear polyester film layers to achieve the desired thickness of the film.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 4.0 mils (0.10 mm).

Tensile Strength (ASTM D 882): 25,000 psi.

Elongation: 130 percent.

Break Strength (ASTM D 882) (Per Inch Width): 100 lbs.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 87 percent.

Visible Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.82.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category I (150 ft.-lbs).

Safety Rating (ANSI Z97.1): Class B, Unlimited Size.

** NOTE TO SPECIFIER ** Delete the next paragraph if Safety S70 (SH7CLARL) film is not required.

Clear Safety and Security Window Film: 3M Safety S70 (SH7CLARL) Safety and Security Window Film. Optically clear polyester film with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other. The film may be laminated to other clear polyester film layers to achieve the desired thickness of the film.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 7.0 mils (0.18 mm).

Tensile Strength (ASTM D 882): 25,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 175 lbs.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 86 percent.

Visible Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.79.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 3B.

GSA Rating with minimum blast pressure and impulse of 10 psi and 89 psi.msec, respectively (GSA blast level "D"): 3B.

** NOTE TO SPECIFIER ** Delete the next paragraph if Safety S80 (SH8CLARL) film is not required.

Clear Safety and Security Window Film: 3M Safety S80 (SH8CLARL) Safety and Security Window Film. Optically clear polyester film with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other. The film may be laminated to other clear polyester film layers to achieve the desired thickness of the film.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 8.0 mils (0.20 mm).

Tensile Strength (ASTM D 882): 25,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 200 lbs.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 86 percent.

Visible Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.79.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 4 psi and 28 psi.msec, respectively (GSA blast level "C"): 2

GSA Rating with minimum blast pressure and impulse of 7 psi and 36 psi.msec, respectively (ISO 16933 blast level "EXV-33"): 2.

GSA Rating with minimum blast pressure and impulse of 11 psi and 55 psi.msec, respectively (ISO 16933 blast level "EXV-25"): 2.

** NOTE TO SPECIFIER ** Delete the next paragraph if Safety S140 (SH14CLARL) film is not required.

Clear Safety and Security Window Film: 3M Safety S140 (SH14CLARL) Safety and Security Window Film. Optically clear polyester film with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other. The film may be laminated to other clear polyester film layers to achieve the desired thickness of the film.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 14.0 mils (0.36 mm).

Tensile Strength (ASTM D 882): 25,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 350 lbs.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 85 percent.

Visible Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.78.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch (6.4 mm) annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft.-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited Size.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection

Film shall pass impact of Medium Large Missile "C" and withstand subsequent pressure cycling (per ASTMs E 1996 and E 1886) at 50 psf Design Pressure with use of 3M Impact Protection Adhesive attachment system.

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.

GSA Rating with minimum blast pressure and impulse of 7 psi and 36 psi.msec, respectively (ISO 16933 blast level "EXV-33"): 3B.

GSA Rating with minimum blast pressure and impulse of 11 psi and 55 psi.msec, respectively (ISO 16933 blast level "EXV-25"): 3B.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Forced Entry Protection: Independent lab testing according to UL 972 protocol (Multiple Impact Test).

Annealed Glass (1/4 inch) - Pass

Tempered Glass (1/4 inch) - Pass

** NOTE TO SPECIFIER ** Delete the entire next article if not required.

2.5

SAFETY AND SECURITY WINDOW FILM WITH SUN CONTROL

** NOTE TO SPECIFIER ** Delete the next paragraph if Safety Affinity S15 (AFF-S15) film is not required.

Safety and Security Window Film with Sun Control: 3M Safety Affinity S15 (AFF-S15) Safety and Security Window Film with Sun Control. Optically clear polyester film laminated to one or more polyester layers to achieve the desired thickness and solar properties. Film has a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other.

Physical / Mechanical Performance Properties:

Film Color: tinted.

Thickness: Nominal 8.5 mils (0.22 mm).

Tensile Strength (ASTM D 882): 32,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 265 lbs/inch.

Elongation (ASTM D 882): >100 percent.

Puncture Strength (ASTM D 4830): 173 lbs.

Solar Performance Properties - film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 11 percent.

Visible Reflection (ASTM E 903): Not more than 25 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.23.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): [RESERVED].

Safety Rating (ANSI Z97.1): [RESERVED].

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

Film shall pass impact of Medium Large Missile "C" per ASTM E 1996 with use of 3M Impact Protection Adhesive attachment system.

** NOTE TO SPECIFIER ** Delete the next paragraph if Safety Affinity S65 (AFF-S65) film is not required.

Safety and Security Window Film with Sun Control: 3M Safety Affinity S65 (AFF-S65) Safety and Security Window Film with Sun Control. Optically clear polyester film laminated to one or more polyester layers to achieve the desired thickness and solar properties. Film has a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other.

Physical / Mechanical Performance Properties:

Film Color: tinted.

Thickness: Nominal 8.5 mils (0.22 mm).

Tensile Strength (ASTM D 882): 32,000 psi.

Break Strength (ASTM D 882) (Per Inch Width): 265 lbs/inch.

Elongation (ASTM D 882): >100 percent.

Puncture Strength (ASTM D 4830): 173 lbs.

Solar Performance Properties - film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 58 percent.

Visible Reflection (ASTM E 903): Not more than 8 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.64.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Impact Resistance for Safety Glazing: Tested on 1/4 inch annealed glass.

Safety Rating (CPSC 16 CFR, Part 1201): Category II (400 ft-lbs).

Safety Rating (ANSI Z97.1): Class A, Unlimited (400 ft-lbs).

** NOTE TO SPECIFIER ** Contact 3M for specific test details. Delete the next paragraph if not required.

Windstorm Protection:

** NOTE TO SPECIFIER ** Delete the entire next article if not required.

2.6

ANTI-GRAFFITI WINDOW FILM

** NOTE TO SPECIFIER ** Delete the next paragraph if AG-4 film is not required.

Anti-Graffiti Window Film: 3M Anti-Graffiti 4 (AG-4) Window Film. Optically clear polyester film with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other. The film may be laminated to other clear polyester film layers to achieve the desired thickness of the film.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 4.0 mils (0.10 mm).

Tensile Strength (ASTM D 882): 34,900 psi.

Break Strength (ASTM D 882) (Per Inch Width): 136 lbs.

Elongation at Break (ASTM D 882): >100 percent.

Peel Strength: 1,000 g/inch.

Puncture Strength (ASTM D 4830): 93 lbs.

Abrasion Resistance (ASTM D1044): < 5 percent increase in haze.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 86 percent.

Total Solar Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.81.

** NOTE TO SPECIFIER ** Delete the next paragraph if AG-6 film is not required.

Anti-Graffiti Window Film: 3M Anti-Graffiti 6 (AG-6) Window Film. Optically clear polyester film with a durable acrylic abrasion resistant coating over one surface and a pressure sensitive adhesive over the other. The film may be laminated to other clear polyester film layers to achieve the desired thickness of the film.

Physical / Mechanical Performance Properties:

Film Color: Clear.

Thickness: Nominal 6.0 mils (0.15 mm).

Tensile Strength (ASTM D 882): 32,200 psi.

Break Strength (ASTM D 882) (Per Inch Width): 190 lbs.

Elongation at Break (ASTM D 882): >100 percent.

Peel Strength: 1,000 g/inch.

Puncture Strength (ASTM D 4830): 132 lbs.

Abrasion Resistance (ASTM D 1044): < 5 percent increase in haze.

Uniformity: No noticeable pin holes, streaks, thin spots, scratches, banding or other optical defects.

Variation in Total Transmission across the Width: Less than 2 percent over the average at any portion along the length.

Identification: Labeled as to Manufacturer as listed in this Section.

** NOTE TO SPECIFIER ** Delete the next paragraph if not required.

Solar Performance Properties: Film applied to 1/4 Inch (6.4 mm) thick clear glass.

Visible Light Transmission (ASTM E 903): 86 percent.

Total Solar Reflection (ASTM E 903): Not more than 10 percent.

Ultraviolet Transmission (ASTM E 903): Less than 1 percent.

Solar Heat Gain Coefficient (ASTM E 903): 0.81.

PART 3

EXECUTION

3.1

EXAMINATION

If preparation of glass surfaces is the responsibility of another installer, notify Architect in writing of deviations from manufacturer's recommended installation tolerances and conditions.

Glass surfaces receiving new film should first be examined to verify that they are free from defects and imperfections, which will affect the final appearance:

Do not proceed with installation until glass surfaces have been properly prepared and deviations from manufacturer's recommended tolerances are corrected. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result under the project conditions.

Commencement of installation constitutes acceptance of conditions.

3.2

PREPARATION

Clean surfaces thoroughly prior to installation.

Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

3.3

INSTALLATION

Install in accordance with manufacturer's instructions.

Cut film edges neatly and square at a uniform distance of 1/8 inch (3 mm) to 1/16 inch (1.5 mm) of window sealant. Use new blade tips after 3 to 4 cuts.

Spray the slip solution, composed of one capful of baby shampoo or dishwashing liquid to 1 gallon of water, on window glass and adhesive to facilitate proper positioning of film.

Apply film to glass and lightly spray film with slip solution.

Squeegee from top to bottom of window. Spray slip solution to film and squeegee a second time.

Bump film edge with lint-free towel wrapped around edge of a 5-way tool.

Upon completion of film application, allow 30 days for moisture from film installation to dry thoroughly, and to allow film to dry flat with no moisture dimples when viewed under normal viewing conditions.

3.4

CLEANING AND PROTECTION

Remove left over material and debris from Work area. Use necessary means to protect film before, during, and after installation.

Touch-up, repair or replace damaged products before Substantial Completion.

After application of film, wash film using common window cleaning solutions, including ammonia solutions, 30 days after application. Do not use abrasive type cleaning agents and bristle brushes to avoid scratching film. Use synthetic sponges or soft cloths.

END OF SECTION