Zinsser Brands / Rust-Oleum Corporation Water Repellents and Sealants Specification

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SECTION 07190

WATER REPELLENTS AND SEALANTS

** NOTE TO SPECIFIER ** Zinsser Brands / Rust-Oleum Corporation; water repellents and sealants.

This section is based on the products of Zinsser Brands / Rust-Oleum Corporation, which is located at:
173 Belmont Dr.
Somerset, NJ 08875
Tel: 732-469-8100
Email: request info
Web: www.zinsser.com
[ Click Here ] for additional information.

Zinsser manufactures and markets a comprehensive line of high-performance problem-solving primers; wallcovering installation and removal products; interior wood finishes; exterior wood care products; concrete and masonry coatings; paint and cleaning products for the long-term prevention of mold and mildew; and low VOC, regulation-compliant coatings. Zinsser products are widely used in commercial, industrial and residential construction, property and institutional maintenance, and by quality-conscious property owners.

Zinsser products can be found virtually anywhere paint is sold. They can be found at more than 70,000 retail outlets across the US and internationally, including home centers, mass merchandisers, hardware stores, paint chains and independent paint and decorating retailers.

Zinsser is a division of the RPM Company, a world leader in specialty coatings and sealants, with headquarters located in Somerset, NJ and offices, manufacturing and distribution facilities throughout the United States, as well as in the UK and Australia.

This Schedule is furnished only as a guide to select water repellents, stains, paint additives, anti-graffiti coating systems and sealer systems for damproofing concrete, brick, masonry, wood and other industrial applications, and is not all-inclusive of available Zinsser products. Although it is written in the CSI format and can be included in its entirety in a master specification, one should review the contents and edit to suit the particular needs of the project and its respective location.

Compliance with state and national V.O.C. (Volatile Organic Compound) regulations are listed in the product description and should be taken into consideration. Because these regulations vary greatly around the country and are subject to change, we suggest that verification of products selected meet the requirements of the area in which they are to be used. If the project is located within the OTC, CARB, SCAQMD or other VOC regulated regions; one must comply with the regulations regarding VOC's. It is always recommended that you consult with a Zinsser Sales Representative or call Zinsser's Consumer Affairs Department at 732-469-8100 before finalizing the selection. Technical Data Bulletins and MSDS documents are available online at www.zinsser.com or by phone request.

Whatever your project - whatever your challenge. Zinsser's got you covered.

PART 1

GENERAL

**NOTE TO SPECIFIER ** Zinsser Offers a complete line of concrete and masonry products under the OKON brand that includes water-base water-repellents with Micro-Plug™ technology, color added concrete coatings, clear concrete/masonry penetrating sealers and graffiti barrier coatings. To see the complete line of OKON® products, visit www.okoninc.com, OKON water repellent and sealer products are particularly useful for: protecting porous masonry from water penetration; protecting dense masonry, concrete, and stone; protecting all types of materials from graffiti; and providing finishes that can be colored for use on concrete and masonry.

1.1

SECTION INCLUDES

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

Water repellents of the following types:

Penetrating water repellents.

Film-building water repellents.

Graffiti and stain repellents.

Graffiti Barrier for sealed surfaces

Breathable color-added coatings.

Water repellents for the following types of surfaces:

Above-grade.

Vertical and horizontal.

Concrete and masonry.

Porous and textured masonry.

Portland cement plaster and stucco.

Clay and concrete Brick

Natural and cast stone.

Tile, canvas, wood, etc.

1.2

RELATED SECTIONS

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

Section 03300 - Concrete: Surface coordination and curing provisions.

Section 03410 - Precast structural concrete.

Section 03470 - Tilt-up Precast Concrete: Surface coordination and curing provisions.

Section 04200 - Masonry: Surface coordination and curing provisions.

Section 09220 - Portland Cement Plaster: Stucco.

Section 09300 - Tile.

Section 09960 - Graffiti Resistant Coatings

1.3

REFERENCES

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

American Society for Testing and Materials (ASTM) C140 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units.

American Society for Testing and Materials (ASTM) E96 - Standard Test Methods for Water Vapor Transmission of Materials.

American Society for Testing and Materials (ASTM) E514 - Standard Test Method for Water Penetration and Leakage Through Masonry.

OTC-Regulation No. 41 - Ozone Transport Commission.

South Coast Air Quality Management District (SCAQMD).

Federal Specification (FS) SS- W- 110C - Water-Repellent, Colorless, Silicone Resin Base.

1.4

SUBMITTALS

Submit under provisions of Section 01300.

Product Data: For each coating system indicated, including:

Material List: An inclusive list of required coating materials. Indicate each material and cross-reference specific coating, finish system, and application. Identify each material by manufacturer's catalog number and general classification.

Preparation instructions and recommendations.

Manufacturer's Information: Manufacturer's technical data bulletin and MSDS, including label analysis and instructions for handling, storing, and applying each coating material.

Third-party report confirming that recommended system has been tested in accordance with ASTM E514 on similar CMU substrate and reduced water absorption by a minimum of 90 percent in comparison to untreated specimen.

Certification by water repellent manufacturer that's products supplied comply with local regulations controlling VOC emissions.

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

Selection Samples: For colored finishes, submit color sample - Samples of each color applied to substrate used on project must be submitted to architect for approval. Architects may use paint color swatches to direct color choices but must be shown samples of each color applied to substrates to illustrate influence of substrate color and variation in transparency between colors. A second coat of stain may be applied and will significantly increase the color saturation of the stain. The architect shall pre-approve in writing a second application of stain before it is applied.

1.5

QUALITY ASSURANCE

Manufacturer Qualifications: Capable of providing field service representation during installation and who will approve application method.

Installer Qualifications: Installer experienced in performing this type of work and who has specialized in work similar to the type required for this project.

** 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.

Provide water repellent stain with the following properties based on testing manufacturer's standard products, according to test methods indicated, applied to substrates simulating project conditions using same materials and application methods to be used for project.

** NOTE TO SPECIFIER ** OKON Plus Color creates a water repellent stain and when top coated with OKON W-2 or OKON Plugger may qualify for a special 5-year water protection warranty. Delete if not required.

Field Sample:

Install at Project site or pre-selected area of building an area for field sample, as directed by Architect.

Provide mockup of at least 100 square feet (9.3 sq. m) to include surface preparation, sealant joint, and juncture details and allow for evaluation of concrete stain top coated with specified water repellent.

Graffiti resistant coating to be applied shall be compatible with the water repellent.

Conduct a minimum of three RILEM tests before and after the concrete stain and water repellent have been applied. Allow stain and sealer to cure three days before completing the post-application test. At least one RILEM test should be performed on a mortar joint within the test area. The average water loss should never exceed 1 ml in 3 minutes or be less than 90 percent improvement when compared to test conducted prior to application of the stain.

Apply material in strict accordance with manufacturer's written application instructions.

Obtain Architect's written approval of field sample before start of material application, including approval of aesthetics, color, texture, and appearance.

Manufacturer's representative will review surface preparation, application, and workmanship.

Field sample will be the standard for judging workmanship on remainder of Project.

Field sample shall be maintained during construction for workmanship comparison.

10.

Field sample shall not be altered, moved, or destroyed until Work is completed and approved by Architect.

11.

Intermix enough product at one time to cover areas between architectural breaks. See manufacturer's technical data bulletin for application instructions.

12.

Intermixing OKON Plus Color and latex paint produces a low viscosity stain that needs to be remixed frequently to ensure color uniformity.

1.6

DELIVERY, STORAGE, AND HANDLING

Deliver materials to Project site in manufacturer's original, unopened packages and containers bearing manufacturer's name and label:

Storage: Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.

Store materials in an area that is within the acceptable temperature range, per manufacturer's instructions. Protect from freezing.

Handling: Maintain a clean, dry storage area, to prevent contamination or damage to the coatings.

Store materials not in use in tightly covered containers in a well-ventilated area at a minimum ambient temperature of 35 deg F (2 deg C). and not above 100 deg F (43 C).

Maintain storage containers in a clean condition, free of foreign materials and residue.

1.7

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.

Do not apply coatings in snow, rain, fog, or mist; or when relative humidity exceeds 85 percent; or at temperatures less than 5 deg F (3 deg C) above the dew point; or to damp or wet surfaces.

Application may continue during inclement weather if surfaces and areas to be coated are enclosed and heated within temperature limits specified by manufacturer during application and drying periods.

Weather and Substrate Conditions: Do not proceed with application of water repellent under any of the following conditions, except with written instructions from the manufacturer:

Ambient air and surface temperature is less than 50 degrees F.

Concrete surfaces and mortar have cured less than 28 days.

Rain or temperatures below 50 degrees F are predicted within 24 hours.

Do not apply coatings when rain is expected less than 12-24 hours after installation

Application is earlier than 24 hours after surface has been wet.

Substrate is frozen or surface temperature is less than 50 degrees F.

Windy conditions exist that may cause water repellent to be blown onto surface not intended to be coated.

1.8

WARRANTY

** NOTE TO SPECIFIER ** OKON S20, W2, Plugger and S40 Water Repellents and Sealers offer an extended Water Repellent Warranty when applied according to Warranty Guidelines provided by ZINSSER on www.okoninc.com. To receive a Warranty, this project must be registered and Warranty procedures must be followed. ALL bidding contractors must be provided a complete copy of product Warranty Guidelines, which includes surface preparation prerequisites, material and application requirements and information on required project inspections and submittals. The following substrates are not eligible for an extended warranty: Fluted-block, masonry with raked joints. Some substrates may not qualify for extended warranty due to extreme porosity; example, light-weight block. The warranty is voided if the top and backside of parapet walls are not waterproofed with metal or similar impermeable, waterproofing material. Delete if extended written warranty is not required.

** NOTE TO SPECIFIER ** Condition of Warranty; Construction shall include waterproofing of the backside of parapet walls with flexible membrane. This shall be done by extending the roof membrane up the backside of the wall under a metal cap on the parapet wall or application of flexible waterproofing membrane. Raked mortar joints disqualify a project for a 5-Year Warranty. Zinsser requires that light-weight block (as defined by ASTM C-90-96) shall contain an integral water repellent to be eligible for a 5-Year Warranty. Construction shall include waterproofing of parapet caps, preferably with metal flashing, as well as the backside of all parapet walls.

Perform work and submit manufacturer's required job registration and verification forms in accordance with Zinsser's OKON Water Repellent Warranty Guidelines provided by Zinsser on www.okoninc.com. Provide manufacturer's 5-year Water Repellent Warranty on the following coating products:

S20 Penetrating Water Repellent Sealer for Dense Concrete and Masonry.

W2 Water Repellent Sealer for Porous Concrete and Masonry.

Plugger Water Repellent Sealer.

Perform work and submit manufacturer's required job registration and verification forms in accordance with Zinsser's OKON Water Repellent Warranty Guidelines provided by Zinsser on www.okoninc.com. Provide manufacturer's 10-year Water Repellent Warranty on the following coating product:

S40 Penetrating Water Repellent Sealer for Vertical or Horizontal Concrete and Masonry.

** NOTE TO SPECIFIER ** Extra materials may not be allowed for publicly funded projects. Delete if not required.

1.9

EXTRA MATERIALS

Furnish extra paint materials from the same production run as the materials applied and in the quantities described below. Package with protective covering for storage and identify with labels describing contents. Deliver extra materials to Owner.

Quantity: Furnish Owner with an additional three percent, but not less than 1 gal (3.8 l) or 1 case, as appropriate, of each material and color applied.

PART 2

PRODUCTS

2.1

MANUFACTURERS

Acceptable Manufacturer: Zinsser Brands / Rust-Oleum Corporation, which is located at: 173 Belmont Dr. ; Somerset, NJ 08875; Tel: 732-469-8100; Email: request info; Web: www.zinsser.com

** 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 01300 Submittals and 01600 Products

** NOTE TO SPECIFIER ** The following table provides guidance for product selection based on the substrate.

** NOTE TO SPECIFIER ** Delete if not required.

2.2

FILM-FORMING CLEAR WATER REPELLENT FOR CAST CONCRETE, UNGLAZED BRICK, CONCRETE FLOORS, STONE AND SIMILAR SURFACES

** NOTE TO SPECIFIER ** OKON W-1 helps protect cast concrete, tilt-up panels, rough stucco and other comparably dense materials from the damaging effects of water absorption - efflorescence, mold, freeze-thaw damage, dusting and staining. It can also be used to dustproof unsealed concrete floors or pads. Delete if not required.

Penetrating Barrier - OKON W-1 Water Repellent Sealer is a water-based, acrylic, micro-emulsion containing 5 percent solids minimum by weight with the following minimum performance properties:

VOC compliant in SCAQMD: 75 g/L.

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Viscosity: < 100 CPS.

Paintable: Yes - ASTM D3359.

Flash Point: N/A.

Weight Solids: 5 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.3

FILM-FORMING CLEAR WATER REPELLENT FOR SMOOTH CONCRETE BLOCK (NOT LIGHTWEIGHT, EXPOSED AGGREGATE, OR SAND-BLASTED CAST CONCRETE)

** NOTE TO SPECIFIER ** OKON W-2 is a water repellent product to reduce water absorption into medium and normal weight decorative block It is a penetrating micro-acrylic emulsion and water repellent that penetrates and forms a barrier against water penetration. When tested in accordance with ASTM E514 test an application of OKON W-2 at 40 square feet/gallon on normal weight split-face block will reduce water absorption by 90 percent when compared to unsealed block. OKON W-2 is VOC compliant in all jurisdictions and Zinsser offers a 5-Year Warranty on pre-qualified projects. Delete if not required.

Penetrating Barrier - OKON W-2 Water Repellent Sealer is a water-based, acrylic, micro-emulsion containing 10 percent solids minimum by weight with the following minimum performance properties:

VOC compliant in SCAQMD: 70 g/L.

ASTM E514 Standard Test Method for Water Penetration and Leakage through Masonry tested on like substrate: > 90 percent reduction in water penetration compared to unsealed surface. Two coats may be required to achieve this level of performance on porous block.

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Viscosity: < 100 CPS.

Paintable: Yes - ASTM D3359.

Flash Point: N/A.

Weight Solids: 10 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.4

FILM-FORMING CLEAR WATER REPELLENT FOR SPLIT-FACE, ROUGH AND POROUS CONCRETE BLOCK

** NOTE TO SPECIFIER ** OKON Plugger is a penetrating micro-acrylic emulsion water repellent with MicroPlug™ Technology that penetrates and forms a barrier against water penetration. In an independent ASTM E514 test, a single coat applied at 70 s.f./gallon on medium weight split-face block, resulted in a 97% reduction in water absorption when compared to unsealed block. OKON Plugger is VOC compliant in all jurisdictions and Zinsser offers a 5-Year Warranty on pre-qualified projects. Delete if not required.

Penetrating Barrier - OKON Plugger Water Repellent Sealer is a water-based acrylic micro-emulsion containing 20 percent solids minimum by weight with the following minimum performance properties:

VOC compliant in SCAQMD: 75 g/L.

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Paintable: Yes - ASTM D3359.

Flash Point: N/A.

Weight Solids: 20 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.5

FILM-FORMING CLEAR WATER REPELLENT FOR FAIRLY POROUS CONCRETE AND UNPAINTED WOOD

** NOTE TO SPECIFIER ** OKON Multi-Surface Water Repellent Sealer with MicroPlug™ Technology is an easy-to-use multi-surface water repellent and sealer. It helps protect porous concrete, wood, canvas, etc. from the damaging effects of water absorption. Delete if not required.

Penetrating Barrier - OKON Multi-Surface Water Repellent Sealer is a water-based, acrylic micro-emulsion, siloxane blend containing a minimum 8 percent solids by weight with the following minimum performance properties:

VOC compliant in SCAQMD: 67 g/L.

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Viscosity: < 100 CPS.

Paintable: Yes - ASTM D3359.

Flash Point: N/A.

Weight Solids: 8 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.6

WATER REPELLANT SEALER WITH COLOR ADDED FOR POROUS CONCRETE AND ROUGH STUCCO (MIXED WITH EXTERIOR LATEX PAINT)

** NOTE TO SPECIFIER ** OKON® Plus Color™ (OPC™) is a water-repellent concrete stain-base with MicroPlug™ Technology that is mixed with latex paint to produce a semi-solid or opaque water-repellent stain for exterior surfaces such as porous unpainted vertical surfaces, cementitious block, brick and stucco. OPC is compatible with all exterior latex paints and contains no pigments to change its color. A test application is required to determine the final appearance and coverage rate because the appearance will be influenced by the porosity, texture and color of the substrate as well as the opacity of the paint color. Application of OKON Plus Color alone may not provide sufficient protection against water absorption from rain and it may be top coated with OKON W-2 or OKON Plugger to provide additional water repellency that may qualify for a 5-Year Warranty. Delete if not required.

Penetrating Barrier - OKON Plus Color (OPC) Water Repellent Concrete Stain Base is a water-based, acrylic, micro-emulsion and fluoropolymer containing 15 percent solids minimum by weight. This product will not peel like paint or an elastomeric coating. This product has the following minimum performance properties:

The application of water repellent stain shall provide finished surfaces color without altering the natural texture of the substrate, and shall resist water penetration from rainfall. It is expected that the stain will highlight the natural variation in the porosity and density of the substrate as its penetration will vary between types of cement and aggregate.

Product shall have the following minimum performance properties:

VOC compliant in SCAQMD: 100 g/L

When tested in combination with manufacturer's water-based acrylic micro-emulsion water repellant sealer- ASTM E514 Standard Test Method for Water Penetration and Leakage through Masonry tested on like substrate - >90 percent reduction in water penetration compared to unsealed surface.

Specific Gravity: 1.02.

Breathable: Yes - ASTM 1653.

Water Vapor Transmission: > 10 perms - ASTM E96.

Paintable: Yes - ASTM D3359.

Flash Point: N/A.

Weight Solids: 15 percent minimum by weight.

** NOTE TO SPECIFIER ** Delete if not required.

2.7

NON-FILM FORMING WATER REPELLANT SEALER FOR DENSE CAST-CONCRETE, PRECAST CONCRETE, STUCOO, SANDSTONE, ADOBE, SLATE AND SIMILAR SURFACES

** NOTE TO SPECIFIER ** OKON S-20 is a water-base, low VOC, high performance ready-to-use, penetrating silane/siloxane water-repellent designed for dense concrete and masonry surfaces. As it penetrates into the surface it reacts with minerals within the substrate and creates a hydrophobic barrier against water intrusion. Delete if not required.

Penetrating Sealer - OKON S-20 is a Silane/Siloxane, clear, water-base, odorless, non-yellowing, penetrating, non-film forming water repellent sealer with the following minimum performance properties:

VOC Compliant in SCAQMD: < 100 g/L.

Depth of Penetration: >=3/8 inch (9.5 mm).

Specific Gravity: 1.01

Breathable: Yes - ASTM 1653

Viscosity: < 50 CPS.

Paintable: Yes - ASTM D3359

Flash Point: > 200 degrees F (93 degrees C)

** NOTE TO SPECIFIER ** Delete if not required.

2.8

NON-FILM FORMING WATER REPELLANT SEALER FOR DENSE CAST-CONCRETE, PRECAST CONCRETE, STUCOO, SANDSTONE, ADOBE, SLATE AND SIMILAR SURFACES FOR GOVERNMENT SPECIFICATIONS AND HIGHWAY WORK (RESISTS SALT, CHEMICALS AND HOT TIRE PICKUP)

** NOTE TO SPECIFIER ** OKON S-40 is a water-base, low VOC, high performance ready-to-use, penetrating oligomeric silane/siloxane water-repellent designed for above grade, horizontal and vertical concrete and masonry surfaces. As it penetrates into the surface it reacts with minerals within the substrate and creates a hydrophobic barrier against water intrusion. This water repellent is designed to protect the surface from the damaging effects of water intrusion, deicing chemicals, freeze-thaw exposure and airborne contaminants such as acid rain, smog and industrial fumes. Delete if not required.

Penetrating Sealers - OKON S-40 is an Oligomeric Silane/Siloxane, clear, water-based, odorless, non-yellowing, penetrating, non-film forming water repellent sealer with the following minimum performance properties:

VOC Compliant in SCAQMD: < 100 g/L.

Depth of Penetration: >=3/8 inch (9.5 mm).

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Viscosity: < 50 CPS.

Paintable: Yes - ASTM D3359.

Flash Point: >200 degrees F (93 degrees C).

Resistance to UV: Excellent Accelerated weathering 1500 hours - No change.

Abrasion Resistance: Excellent.

10.

Properties of the Oligomeric Silane/Siloxane Treated Concrete:

The water repellent shall have been evaluated in accordance with the National Cooperative Highway Research Program, Report No. 244.

Reduction in Water Absorption: 80 percent.

Water Vapor Transmission: 121 percent.

Reduction in Chloride Ion Intrusion: 83 percent.

Water Permeance (S-40. dilute 9:1): ASTM E514: passes Mortar >90 percent reduction in water penetration compared to unsealed surface; Brick - 100 percent reduction.

The penetrating water repellent will not form a vapor barrier.

The penetrating water repellent will not have film-forming capability.

The penetrating water repellent will not change the color, appearance, or surface texture of the treated surface.

ASTM E514 Standard Test Method for Water Penetration and Leakage through Masonry tested on like substrate.

Reduction in absorption - SS-W-110c >=88 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.9

MASONRY SEALER FOR HORIZONTAL SURFACES FOR CONCRETE FLOORS FOR RESISTANCE TO STAINING, LOW GLOSS FINISH

** NOTE TO SPECIFIER ** OKON Seal & Finish is an easy-to-use, water-base, acrylic, micro-emulsion coating that makes concrete surfaces easier to clean and resistant to staining. It is a clear, low-gloss finish seals and protects new or existing, interior or exterior horizontal concrete. It can also be applied over or under other concrete coatings or as a protective layer over concrete stains. Delete if not required.

Concrete and Masonry Sealer - OKON Seal & Finish Clear Concrete / Masonry Sealer is a water-based, acrylic, micro-emulsion coating containing 15 percent solids minimum by weight with the following minimum performance properties:

VOC compliant in SCAQMD: 62 g/L.

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Viscosity: < 100 CPS.

Paintable: Yes - ASTM D3359.

Flash Point: N/A.

Weight Solids: 15 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.10

MASONRY SEALER FOR HORIZONTAL SURFACES FOR CONCRETE FLOORS FOR RESISTANCE TO STAINING, MEDIUM GLOSS FINISH

** NOTE TO SPECIFIER ** OKON Final Shield is an interior/exterior, clear water-base, micro-emulsion coating for new or previously coated concrete surfaces: garage and basement floors; patios, driveways and walks; stained or stamped concrete. It may also be used to seal vertical, dense concrete surfaces; examples, medium or normal weight ground-face block, tilt-up panels or exposed aggregate cast concrete. One coat penetrates and seals new concrete against dusting and provides a thin, easy to maintain finish for previously sealed or stained concrete. Multiple coats protect the surface from moisture penetration, stains and deterioration caused by salt and many chemicals including most petroleum based solvents. Delete if not required.

Concrete Sealer - OKON Final Shield is a water-based acrylic micro-emulsion containing 18 percent solids minimum by weight with the following minimum performance properties:

VOC compliant in SCAQMD: 279 g/L.

Tinting: Application shall provide a stained appearance in a color to match Architect's sample. Can be tinted up to 2 oz. of universal colorant to produce a transparent colored coating to simulate the appearance of stained concrete.

Specific Gravity: 1.01.

Breathable: Yes - ASTM 1653.

Viscosity: > 100 CPS.

Flash Point: N/A.

Weight Solids: 18 percent.

** NOTE TO SPECIFIER ** Delete if not required.

2.11

ANTI-GRAFFITI COATING FOR CONCRETE, BRICK, PLASTER, METAL AND PAINTED SURFACES

** NOTE TO SPECIFIER ** OKON® Graffiti Barrier Coat (GBC) is a water base, clear, low VOC coating that prevents aerosol paint and markers from penetrating and permanently staining a variety of architectural surfaces - concrete, brick, plaster, metal, painted surfaces. When used in combination with Zinsser Graffiti Remover and Stripper, spray paint and markers can be removed quickly and completely from surfaces protected with GBC.

Graffiti Barrier Coat - OKON® Graffiti Barrier Coat is a single-component, non-yellowing self-cross linked acrylic barrier coat with the following minimum performance properties:

** NOTE TO SPECIFIER ** ZINSSER Graffiti Remover & Stripper is an incremental paint stripper based on SOYZOL™, which is an eco-friendly solvent derived from soybeans. Incremental means that it works on the upper most layers first and then works downward. This allows graffiti or paint spatter to be removed without removing the underlying paint coating. It removes graffiti on painted or sealed surfaces, strips sealers and varnishes from concrete and wood, lifts paint spatter, overspray, spray paint, spot cleaner for stains, tire marks, permanent markers, crayon, inks and adhesive residue from hard, sealed surfaces. The longer the product stays on the surface the more layers will be removed.

Graffiti Remover and Stripper - Zinsser Graffiti Remover and Stripper with SOYZOL is a biobased and biodegradable product derived from soybeans with the following minimum performance properties:

Type: Soybased solvent.

Appearance: Amber liquid gel.

Qualified for US EPA "Design for the Environment Program" that supports LEED Green Building certification.

HMIS Health Hazard Rating = 1.

Non-flammable - An environmentally sound substitute for flammable solvents, caustics or methylene chloride strippers.

VOC compliant in SCAQMD: 4.4 percent by weight (compliant all jurisdictions) - CARB Method 310 and ASTM D2887-06.

Specific Gravity: 1.0.

Viscosity: 750 CPS.

Flash Point: > 200 Deg. F.

10.

Weight Solids: 23 percent.

PART 3

EXECUTION

3.1

EXAMINATION

Do not begin installation until substrates have been properly prepared.

If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.2

PREPARATION

Clean substrate of substances that might interfere with penetration or performance of water repellents. Remove all dust, dirt, paint, bitumen, efflorescence, oil, pollution deposits, and curing, forming, and parting compounds, other contaminants prior to application. Use abrasive brush blast or high pressure water as necessary to achieve the required surface condition.

Allow power washed surfaces to dry three days prior to coating. Surface shall be dry to touch and show no visible signs of moisture prior to application of water repellent.

Protect adjoining work, including sealant bond surfaces, from spillage or over spray of water repellent. Cover adjoining and nearby surfaces of aluminum and glass if there is the possibility of water repellent being deposited on surfaces.

Coordination with Sealants: Do not apply water repellent until sealants for joints adjacent to surfaces receiving water repellent treatment have been installed and cured.

Water repellent work may precede sealant application only if sealant adhesion and compatibility have been tested and verified using substrate, water repellent, and sealant materials identical to those used in the work.

3.3

APPLICATION

Apply a heavy saturation spray coating of water repellent on surfaces indicated for treatment using pressure spray equipment. Comply with manufacturer's written instructions for using airless spraying procedure, unless otherwise directed.

Follow application method and rate established by Test Area. Apply a second saturation spray coating, if required, repeating first application. Comply with manufacturers written instructions for limitations on drying time between coats. Consult manufacturer's technical representative if written instructions are not applicable to project conditions.

3.4

FIELD QUALITY CONTROL

Manufacturers Field Service: Provide service of a factory authorized technical service representative to inspect and approve the substrate before application and to instruct the applicator on the product and application method to be used.

3.5

CLEANING

Protective Covering: Remove protective coverings from adjacent surfaces and other protective areas.

Immediately clean water repellent from adjoining surfaces and surfaces soiled or damaged by water repellent application as work progresses. Repair damage caused by water repellent application. Comply with manufacturers written cleaning instructions.

END OF SECTION