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SECTION 09 97 23 - Concrete and Masonry Coatings
 
 
CONCRETE AND MASONRY COATINGS
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** NOTE TO SPECIFIER ** Hempel (USA) Inc.; Fluid applied Coating products.
.
This section is based on the products of Hempel (USA) Inc., which is located at:
2728 Empire Central
Dallas, TX 75235-0288
Toll Free Tel: 800-321-6588
Tel: 214-353-1600
Fax: 214-357-7532
Email: request info (neogard@neogard.com)
Web: www.neogard.com | www.north-america.hempel.com
[ Click Here ] for additional information.
NEOGARD, a Division of Hempel (USA), Inc., is a fully integrated research and manufacturing organization in Dallas, Texas. NEOGARD products have been specified and used on prestigious projects around the world by leading architects, engineers and consultants for over 50 years. Our line of coating systems protects the building envelope through vehicular and pedestrian traffic coatings, protective roof coatings, seamless flooring and elastomeric wall coatings.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Neocrylic Decorative Interior or Exterior Concrete and Masonry Coatings.
B.
Neocrylic LR Light Reflective Interior or Exterior Concrete and Masonry Coating.
C.
Neoflex Elastomeric Interior or Exterior Wall Coatings.
D.
Neocrylic HB High-Build Acrylic Interior or Exterior Wall Coating.
E.
Wall-Gard HD Highly Durable Interior Wall and Ceiling Coating System.
F.
Accessories.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 03 30 00 - Cast-in-Place Concrete
B.
Section 03 41 16 - Precast Concrete Slabs
C.
Section 04 40 00 - Stone Assemblies
D.
Section 07 24 00 - Exterior Insulation and Finish Systems.
E.
Section 07 90 00 - Joint Protection
F.
Section -
G.
Section 09 25 23 - Lime Based Plastering
H.
Section 09 67 13 - Elastomeric Liquid Flooring
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
ASTM C 840 - Standard Specification for Application and Finishing of Gypsum Board.
B.
ASTM D 412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension.
C.
ASTM D 523 - Standard Test Method for Specular Gloss.
D.
ASTM D 471 - Standard Test Method for Rubber PropertyEffect of Liquids
E.
ASTM D 562 - Standard Test Method for Consistency of Paints Measuring Krebs Unit (KU) Viscosity Using a Stormer-Type Viscometer.
F.
ASTM D 570 - Standard Test Method for Water Absorption of Plastics.
G.
ASTM D 822 - Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings.
H.
ASTM D 903 - Standard Test Method for Peel or Stripping Strength of Adhesive Bonds.
I.
ASTM D 1475 - Standard Test Method For Density of Liquid Coatings, Inks, and Related Products.
J.
ASTM D 1653 - Standard Test Methods for Water Vapor Transmission of Organic Coating Films.
K.
ASTM D 2240 - Standard Test Method for Rubber PropertyDurometer Hardness.
L.
ASTM D 2370 - Standard Test Method for Tensile Properties of Organic Coatings.
M.
ASTM D 3274 - Standard Test Method for Evaluating Degree of Surface Disfigurement of Paint Films by Microbial (Fungal or Algal) Growth or Soil and Dirt Accumulation.
N.
ASTM D 3278 - Standard Test Methods for Flash Point of Liquids by Small Scale Closed-Cup Apparatus.
O.
ASTM D 4060 - Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser.
P.
ASTM D 4209 - Standard Practice for Determining Volatile and Nonvolatile Content of Cellulosics, Emulsions, Resin Solutions, Shellac, and Varnishes.
Q.
ASTM D 4541 - Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers.
R.
ASTM E 86 - Methods for Chemical Analysis of Antimony.
S.
ASTM E 97 - Method of Test for Directional Reflectance Factor, 45-Deg 0-Deg, of Opaque Specimens by Broad-Band Filter Reflectometry.
T.
ASTM G 154 - Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials.
U.
FS TT-CC 555B - Coating, Textured (For Interior And Exterior Masonry Surfaces).
V.
DIN PR EN 1062-6 - Coating materials and coating systems for exterior masonry and concrete - Part 6: Determination of carbon dioxide permeability
W.
EPA Method 24 - Test Method 24 Determination of volatile matter content, water content, density, volume solids, and weight solids of surface coatings.
1.4
DESIGN / PERFORMANCE REQUIREMENTS
A.
Requirement of Regulatory Agencies: Specified materials shall meet existing Federal, State and local VOC regulations.
1.5
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's product data and material Safety Data Sheets (SDS) on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Manufacturer's Certificates: Certify products meet or exceed specified requirements.
D.
Closeout Submittals: Provide manufacturer's maintenance instructions that include recommendations for periodic checking and adjustment and periodic cleaning and maintenance of all components.
1.6
QUALITY ASSURANCE
A.
Installer Qualifications: An applicator acceptable to the manufacturer with documented experience in the installation of the floor system specified.
B.
Pre-Application Meeting:
1.
Convene a pre-application meeting two weeks before the start of application of floor coating system.
2.
Require attendance of parties directly affecting work of this section, including the Contractor, Applicator and Manufacturer's Representative.
3.
Review the surface preparation, application, cleaning, protection and coordination with other work.
 
** NOTE TO SPECIFIER ** Include a field sample if the project size and/or quality warrant taking such a precaution. Delete if not required.
 
C.
Field Sample: Provide a field sample for evaluation of surface preparation techniques and application workmanship.
1.
Finish areas designated by Architect.
2.
Do not proceed with remaining work until workmanship, color, and texture are approved by Architect.
3.
Refinish sample area as required to produce acceptable work.
4.
Maintain approved field sample during construction for workmanship comparison.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's original sealed containers, clearly marked with supplier's name, brand name and type of material until ready for installation.
B.
Storage and Handling: Recommended material storage temperature is 75 degrees F (24 degrees C). Handle products to prevent damage to container. All materials shall be stored in compliance with local fire and safety requirements. Do not store at high temperatures or in direct sunlight. Protect all materials from freezing.
C.
Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
1.8
SEQUENCING
A.
Ensure that locating templates and other information required for installation of products of this section are furnished to affected trades in time to prevent interruption of construction progress.
B.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
1.9
PROJECT CONDITIONS
A.
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.
B.
Read and follow the Safety Data Sheet (SDS) and container labels for detailed health and safety information.
C.
Coordinate work with other trades. Applicator shall have sole right of access to the specified area for the time needed to complete the application and allow the system to cure adequately.
D.
Protect adjacent surfaces from damage resulting from installation of the system. If necessary, mask and/or cover adjacent surfaces, fixtures, equipment, etc. by suitable means.
E.
Protect plants, vegetation or other surfaces not to be coated against damage or soiling.
F.
Provide adequate ventilation.
G.
Provide a suitable workstation to mix coating materials.
H.
Maintain work area in a neat and orderly condition, removing empty containers, rags and trash daily from the site.
1.10
COORDINATION
A.
Coordinate Work with other operations and installation of floor finish materials to avoid damage to installed materials
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Hempel (USA) Inc., which is located at: 2728 Empire Central; Dallas, TX 75235-0288; Toll Free Tel: 800-321-6588; Tel: 214-353-1600; Fax: 214-357-7532; Email: request info (neogard@neogard.com); Web: www.neogard.com | www.north-america.hempel.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
** NOTE TO SPECIFIER ** Select the Coating(s) required from the following paragraphs; and delete those that are not required.
 
2.2
NEOCRYLIC DECORATIVE INTERIOR OR EXTERIOR CONCRETE AND MASONRY COATING
A.
System: Neocrylic shall be a complete system of compatible materials supplied by NEOGARD to create a seamless coating system.
1.
Primers:
a.
Previously Painted, EIFS, Chalky or Porous Concrete/Masonry Primer: 7031-100 (28010) water-based acrylic primer.
b.
New Concrete, Masonry, and Wood Primer: 3090 (181JB) MULTI-GRIP II primer.
c.
Ferrous Metal Primer: 33304/99953 (15099/95045) CHEM-O-PON Primer or 3090 MULTI-GRIP II primer.
d.
Galvanized Metal Primer: 3090 MULTI-GRIP II primer.
2.
Patching Compound: 7032 (61AJB) series NEOFLEX patching compound.
3.
Decorative Coating: 7151 (58025) series decorative acrylic coating.
4.
Sealant: 70991 (47XJB) series polyurethane sealant or approved equal.
B.
Performance Requirements of Cured Film:
1.
Viscosity as tested in conformance with ASTM D 562: 99 KU
2.
Weight/Gal as tested in conformance with ASTM D 1475: 11.3
3.
Solids (Weight) as tested in conformance with ASTM D 4209: 50.2 percent
4.
Solids (Volume) as Calculated: 32.8 percent
5.
VOC as tested in conformance with: EPA Method 24: 97.5 g/L
6.
MVT @ 3 Mils as tested in conformance with ASTM E 96: > 20 Perms
7.
Flash Point as tested in conformance with ASTM D 3278: None
8.
Gloss 60 Degree as tested in conformance with ASTM D 523: 4
2.3
LIGHT REFLECTIVE INTERIOR OR EXTERIOR CONCRETE AND MASONRY COATING
A.
System: NEOCRYLIC LR shall be a complete system of compatible materials supplied by NEOGARD to create a seamless coating system.
1.
Sealant: 70991 (47XJB) series polyurethane sealant or approved equal.
2.
Light Reflective Coating: 7051-LR (388JB) Light Reflective Acrylic Concrete and Masonry coating.
B.
Performance Requirements of Cured Film:
1.
Tensile Strength as tested in conformance with: ASTM D 412, 250 psi
2.
Elongation as tested in conformance with: ASTM D 412, 90 percent
3.
Permanent Set as tested in conformance with: ASTM D 412, <20 percent
4.
MVT as tested in conformance with: ASTM D 1653, 2.6 Perms
5.
Reflectivity, Diffuse as tested in conformance with: LM 44 1990, 94.8 percent
6.
Accelerated Weathering as tested in conformance with: ASTM G 154, 3000 hrs: No chalking, discoloration or cracking
2.4
NEOFLEX ELASTOMERIC INTERIOR OR EXTERIOR WALL COATINGS
A.
System: NEOFLEX shall be a complete system of compatible materials supplied by NEOGARD to create a seamless weatherproof coating system.
1.
Primers:
a.
Previously Painted, EIFS, Chalky or Porous Concrete/Masonry Primer: 7031-100 (28010) water-based acrylic primer.
b.
New Concrete, Masonry, and Wood Primer: 3090 (181JB) MULTI-GRIP II primer.
c.
Ferrous Metal Primer: 33304/99953 (15099/95045) CHEM-O-PON Primer or 3090 MULTI-GRIP II primer.
d.
Galvanized Metal Primer: 3090 MULTI-GRIP II primer.
2.
Patching Compound: 7032 (61AJB) series NEOFLEX patching compound.
3.
Elastomeric Coating: 7100 (58015) series acrylic coating.
4.
Decorative Coating: 7151 (58025) series decorative acrylic coating.
5.
Sealant: 70991 (47XJB) series polyurethane sealant or approved equal.
B.
Performance Requirements of Cured Film:
1.
Tensile Strength as tested in conformance with: ASTM D 2370, 125 psi
2.
Elongation as tested in conformance with: ASTM D 2370, 300 percent
3.
Water Resistance as tested in conformance with: ASTM D 471, <20 percent
4.
Adhesion as tested in conformance with: ASTM D 903, 5 lb/in.
5.
98 MPH Wind-Driven Rain as tested in conformance with: TT-CC 555B, Passes.
6.
Carbon-Dioxide Diffusion as tested in conformance with: PR EN 1062-6, Sd>100 meters.
7.
Water-vapor Permeance @ 10 mils as tested in conformance with: ASTM D 1653, 20 perms.
8.
Light Reflectance Smooth Surface as tested in conformance with: ASTM E 97, 92 percent.
9.
Fungus and Mildew Resistance as tested in conformance with: ASTM D 3274, No Growth.
10.
Accelerated Weathering as tested in conformance with: ASTM D 822, 3,000 hrs, No Chalking Discoloration or Cracking.
2.5
NEOCRYLIC HIGH-BUILD ACRYLIC INTERIOR OR EXTERIOR WALL COATING
A.
System: Neocrylic HB shall be a complete system of compatible materials supplied by NEOGARD to create a seamless weatherproof coating system.
1.
Primers:
a.
Previously Painted, EIFS, Chalky or Porous Concrete/Masonry Primer: 7031-100 (28010) water-based acrylic primer.
b.
New Concrete, Masonry, and Wood Primer: 3090 (181JB1L000) MULTI-GRIPTM II primer.
c.
Ferrous Metal Primer: 33304/99953 (15099/95045) CHEM-O-PON Primer or 3090 MULTI-GRIP II primer.
d.
Galvanized Metal Primer: 3090 MULTI-GRIP II primer.
2.
Sealant: 70991 (47XJB) series polyurethane sealant or approved equal.
3.
Patching Compound: 7032 (61AJB) series NEOFLEX patching compound.
4.
Decorative Coating: 7170 or 7172 (382JB00010 or 383JB00010) series acrylic coating.
B.
Performance Requirements of Cured Film:
1.
Tensile Strength as tested in conformance with: ASTM D 2370, 125 psi
2.
Elongation as tested in conformance with: ASTM D 2370, 300 percent
3.
Water Resistance as tested in conformance with: ASTM D 471, <20 percent
4.
Adhesion as tested in conformance with: ASTM D 903, 5 lb/in.
5.
98 MPH Wind-Driven Rain as tested in conformance with: TT-CC 555B, Passes.
6.
Carbon-Dioxide Diffusion as tested in conformance with: PR EN 1062-6, Sd>100 meters.
7.
Water-vapor Permeance @ 10 mils as tested in conformance with: ASTM D 1653, 20 perms.
8.
Light Reflectance Smooth Surface as tested in conformance with: ASTM E 97-82, 92 percent.
9.
Fungus and Mildew Resistance as tested in conformance with: ASTM D 3274, No Growth.
10.
Accelerated Weathering as tested in conformance with: ASTM D 822 3,000 hrs, No Chalking Discoloration or Cracking.
2.6
WALL-GARD HD HIGHLY DURABLE INTERIOR WALL AND CEILING COATING SYSTEM
A.
System: Wall-Gard HD shall be a complete system of compatible materials supplied by NEOGARD to create a high performance, seamless, durable, vertical and overhead interior coating system.
1.
Primers: 70714/70715 (45069/95073) clear epoxy.
2.
Drywall Primer: Polyvinyl Acetate (PVA).
3.
Base Coat: 70724/70715 (251J9/95073) high build epoxy mastic.
4.
Topcoats:
a.
70900/70910 (47DJ9/94AJB) series water- based urethane, gloss finish.
b.
70901/70910 (47VJ9/94AJB) series water- based urethane, semi-gloss finish.
5.
Reinforced Fabric: 63UJB Fiberglass mesh.
B.
Performance Requirements of cured 70724/70715 epoxy:
1.
Tensile Strength as tested in conformance with: ASTM D 638, 5,000 psi
2.
Elongation as tested in conformance with: ASTM D 638, 10 percent
3.
Shore D Hardness as tested in conformance with: ASTM D 2240, 80
4.
Adhesion as tested in conformance with: ASTM D 4541, 300 psi.
5.
Taber Abrasion (CS-17) as tested in conformance with: ASTM D 4060, 50 mg/1,000 rev.
6.
Water Resistance as tested in conformance with: ASTM D 570, 0.15 percent.
7.
MVT @ 10 mils as tested in conformance with: ASTM E 96, 0.15.
C.
Performance Requirements of cured 70900 Series or 70901 Series urethane:
1.
Impact Resistance as tested in conformance with: ASTM D 2794, 70900 Series Gloss 120 lbs/in; 70901 Series Semi-Gloss 160 lbs/in.
2.
Taber Abrasion, CS-17 as tested in conformance with: ASTM D 4060, 70900 Series Gloss 15 mg loss/1,000 cycles; 70901 Series Semi-Gloss 67 mg loss/1,000 cycles.
3.
Pencil Hardness as tested in conformance with: ASTM D 3363, 70900 Series Gloss 4H Gouge; 70901 Series Semi-Gloss 4H Gouge.
2.7
ACCESSORlES
A.
Miscellaneous materials shall be approved by the manufacturer of the coating. All materials used shall be applied in accordance with its manufacturer's recommendations.
2.8
MIXING
A.
Comply with manufacturer's instructions for mixing procedures.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
Concrete shall meet the following requirements:
1.
Concrete free of ridges and sharp projections.
2.
New concrete should be cured for a minimum of 28 days. Water-cured treatment of concrete is preferred. Resin or waxed based curing compound should not be used. Non-compatible curing agents must be removed prior to application.
3.
Concrete surface pH level must not be higher than 11 prior to coating.
4.
All loose concrete, or mortar, is removed.
5.
Damaged areas of concrete, including bug holes, voids and air pockets, should be repaired using a cement biased patching compound.
C.
Masonry (Brick, Low Density Block, Cinder Block, Stucco): shall meet the following requirements:
1.
New masonry should be allowed to dry for a minimum of 28 days.
2.
Mortar joints are sound and without voids.
3.
Defective mortar or stucco areas should be repaired using a cement based patching compound.
D.
Exterior Insulated and Finish Systems (EIFS):
1.
Surface should be clean and free of grease and contaminants.
2.
Caulk joints should be checked, primed and recaulked with sealant.
3.
Defective areas should be repaired following EIFS manufacturer's specified repair procedure.
E.
Drywall, New Construction: Drywall shall be finished as specified in Section 09 25 23 - Lime Based Plastering.
F.
Existing Painted Surfaces:
1.
Ensure that existing paint is fully adhered and sound.
2.
Abrade surface using 100-grit screen or sandpaper.
3.
Thoroughly remove all dust and debris
G.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
 
** NOTE TO SPECIFIER ** Select the Preparation required for the Coating(s) specified from the following Preparation paragraphs; and delete those that are not required.
 
3.2
PREPARATION NEOCRYLIC
A.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
B.
Cleaning: Surfaces should be clean and free of oil or grease. All loose materials and foreign matter should be removed from the substrate. All mildew and algae must be removed from the substrate with a solution of one tablespoon of Tri-Sodium Phosphate and two pints of liquid bleach in one gallon of water (.125 to .25 liters per liter). Rinse thoroughly with clear water. Surfaces should be pressure-washed and allowed to thoroughly dry prior to application.
C.
Crack and Cold Joints: Visible hairline cracks (up to 1/16 inch in width) in masonry should be pretreated with a detail application of 7032 patching compound. Large cracks and construction joints should be sealed with 70991 series sealant. Sealant shall be applied to inside area of crack only. Detail sealed cracks with a liberal application of 7032 patching compound. "Reemay" type spun polyester fabric may be incorporated into the details for added reinforcement.
D.
Control Joints: Seal secondary control joints with 70991 series sealant.
3.3
PREPARATION NEOFLEX
A.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
B.
Cleaning: Surfaces should be clean and free of oil or grease. All loose materials and foreign matter should be removed from the substrate. All mildew and algae must be removed from the substrate with a solution of one tablespoon of Tri-Sodium Phosphate and two pints of liquid bleach in one gallon of water (.125 to .25 liters per liter). Rinse thoroughly with clear water. Surfaces should be pressure-washed and allowed to thoroughly dry prior to application.
C.
Crack and Cold Joints: Visible hairline cracks (up to 1/16 inch in width) in masonry should be pretreated with a detail application of 7032 patching compound. Large cracks and construction joints should be sealed with 70991 series sealant. Sealant shall be applied to inside area of crack only. Detail sealed cracks with a liberal application of 7032 patching compound. "Reemay" type spun polyester fabric may be incorporated into the details for added reinforcement.
D.
Control Joints: Seal secondary control joints with 70991 series sealant.
3.4
PREPARATION NEOCRYLIC LR
A.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
B.
Surface should be clean, dry and sound. Concrete substrates should have a minimum 28 day cure and be free of all bond-inhibiting contaminants.
C.
Cleaning: Surfaces should be clean and free of oil or grease. All loose materials and foreign matter should be removed from the substrate. All mildew and algae must be removed from the substrate with a solution of one tablespoon of Tri-Sodium Phosphate and two pints of liquid bleach in one gallon of water (.125 to .25 liters per liter). Rinse thoroughly with clear water. Surfaces should be pressure-washed and allowed to thoroughly dry prior to application. High pressure water blast (or abrasive blast on hard, dense surfaces) surface to medium grit sandpaper texture (ICRI CSP3). Some stains may require chemical removal. Be sure to neutralize the compounds and rinse thoroughly with clean water. Allow to dry prior to application.
D.
Repair any holes, spalled areas and damaged concrete with appropriate NEOGARD repair materials.
E.
Crack and Cold Joints: Cracks larger than 1/4 inch shall be sealed with 70991 or 70995 series sealant.
3.5
PREPARATION NEOCRYLIC HB
A.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
B.
Surface should be clean, dry and sound.
C.
Cleaning: Surfaces should be clean and free of oil or grease. All loose materials and foreign matter should be removed from the substrate. All mildew and algae must be removed from the substrate with a solution of one tablespoon of Tri-Sodium Phosphate and two pints of liquid bleach in one gallon of water (.125 to .25 liters per liter). Rinse thoroughly with clear water. Surfaces should be pressure-washed and allowed to thoroughly dry prior to application. Allow to dry prior to application.
D.
Crack and Cold Joints: Visible hairline cracks (up to 1/16" in width) in masonry should be pretreated with a detail application of 7032 patching compound. Large cracks and construction joints should be filled with 70991 series sealant prior to application. Detail filled cracks with a liberal application of 7032 patching compound. Spun polyester fabric, similar to "Reemay," may be incorporated into the details for added reinforcement.
E.
Control Joints: Seal secondary control joints with 70991 series sealant.
3.6
PREPARATION WALL-GARD HD
A.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
B.
Concrete or Block Wall:
1.
Remove any loose concrete or mortar.
2.
Cleaning: Surfaces must be free of dust, dirt, oil, grease or other contaminants. Areas where oil or other contaminants have penetrated deep into the concrete may require removal by mechanical methods.
3.
High-Pressure Water Blast: Required method for remedial construction; preferred method for new construction. Surface must match medium grit sandpaper texture (ICRI CSP 3). Note: Use abrasive blast on hard, dense surfaces.
4.
Repair any holes, spalled or damaged concrete with appropriate NEOGARD repair materials. Smooth out any irregularities on concrete surfaces before application.
C.
Drywall, New Construction: Drywall must be finished to Level 4 or 5 in accordance with ASTM C 840.
D.
Existing Painted Surfaces:
1.
Ensure that existing paint is fully adhered and sound.
2.
Abrade surface using 100-grit screen or sandpaper.
3.
Thoroughly remove all dust and debris
3.7
APPLICATION - NEOCRYLIC
A.
Apply in accordance with manufacturer's instructions.
B.
Primer:
1.
Chalky or porous concrete/masonry surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 150-350 square feet per gallon.
2.
Previously painted surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 175-400 square feet per gallon.
3.
EIFS should be primed with 7031-100 water-based acrylic primer at a rate of 150- 300 square feet per gallon.
4.
New concrete, masonry and wood surfaces should be primed with 3090 MULTI-GRIPTM II primer at a rate of 100- 400 square feet per gallon.
5.
Ferrous metal should be clean and rust free. Prime using 33304/99953 CHEM-O-PON or 3090 MULTI-GRIP II primer at a rate of 200-300 square feet per gallon.
6.
Galvanized metal should be solvent-wiped and primed with 3090 MULTI-GRIPTM II primer at a rate of 400- 500 square feet per gallon.
C.
Decorative Concrete and Masonry Coating: Apply 7151 series coating material at a minimum lm thickness of 3 dry mils in strict accordance with application procedures outlined by NEOGARD. Coverage rate will be 200- 300 square feet per gallon depending on texture and porosity of substrate.
3.8
APPLICATION - NEOCRYLIC LR
A.
Apply in accordance with manufacturer's instructions.
B.
Use a wet mil gauge to verify actual thickness of wet coating applied. Adjust the factors that directly affect the dry film build as recommended by the manufacturer.
C.
Primer:
1.
EIFS, chalky or porous masonry, and previously painted surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 150-350 square feet per gallon.
2.
New masonry and wood, ferrous metal and galvanized metal surfaces should be primed with 3090 MULTI-GRIP II primer at a rate of 100-400 square feet per gallon.
a.
Ferrous metal should be clean and rust free. Apply 3090 MULTI-GRIPTM II primer at a rate of 200-300 square feet per gallon.
b.
Galvanized metal should be solvent-wiped and primed with 3090 MULTI-GRIP II primer at a rate of 400-500 square feet per gallon.
D.
Neocrylic LR is meant to be applied as a one coat or two coat system, achieving a DFT of 3 dry mils on a single coat system and 6 dry mils on a two coat system.
1.
Apply 7051 Light Reflective Concrete and Masonry coating at 200 sf/gal (or 0.5 gal/100 sf) or 3 dry mils, in strict accordance with application procedures outlined by NEOGARD. Neocrylic LR Light Reflective Concrete and Masonry Coating can be applied by brush, spray, roller or spray and backroll. Spray apply coating for best results.
2.
Maintain proper uniform wet- film thickness (WFT) during application to ensure the performance characteristics desired, always working to a natural break. Maintain a wet edge during application.
3.
For uniformity of color and coverage, application techniques must be consistent throughout the project. Inconsistent application techniques will produce color and coverage variations.
3.9
APPLICATION - NEOFLEX
A.
Apply in accordance with manufacturer's instructions.
B.
Use a wet mil gauge to verify actual thickness of wet coating applied. Adjust the factors that directly affect the dry film build as recommended by the manufacturer.
C.
Primer:
1.
Chalky or porous concrete/masonry surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 150-350 square feet per gallon.
2.
Previously painted surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 175-400 square feet per gallon.
3.
EIFS should be primed with 7031-100 water-based acrylic primer at a rate of 150- 300 square feet per gallon.
4.
New concrete, masonry and wood surfaces should be primed with 3090 MULTI-GRIPTM II primer at a rate of 100- 400 square feet per gallon.
5.
Ferrous metal should be clean and rust free. Prime using 33304/99953 CHEM-O-PON or 3090 MULTI-GRIP II primer at a rate of 200-300 square feet per gallon.
6.
Galvanized metal should be solvent-wiped and primed with 3090 MULTI-GRIP II primer at a rate of 400- 500 square feet per gallon.
D.
Elastomeric Coating Material: Apply 7100 series elastomeric coating at a minimum dry film thickness of 10 mils in strict accordance with the application procedures outlined by NEOGARD and exhibit a pinhole free surface. Note: If pinholes are present, additional coats of elastomeric coating will be required. Coverage rate is approximately 50- 80 square feet per gallon depending on texture and porosity of substrate.
E.
Optional Topcoat Material: For outstanding color retention and reduced dirt pickup, apply one coat of 7151 series decorative coating at the rate of 200- 300 square feet per gallon on smooth surfaces and 100- 200 square feet per gallon on textured surfaces.
3.10
APPLICATION - NEOCRYLIC HB HIGH-BUILD ACYLIC WALL COATING
A.
Apply in accordance with manufacturer's instructions.
B.
Primer:
1.
Chalky or porous concrete/masonry surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 150-350 square feet per gallon.
2.
Previously painted surfaces should be primed with 7031-100 water-based acrylic primer at a rate of 175-400 square feet per gallon.
3.
EIFS should be primed with 7031-100 water-based acrylic primer at a rate of 150- 300 square feet per gallon.
4.
New concrete, masonry and wood surfaces should be primed with 3090 MULTI-GRIPTM II primer at a rate of 100- 400 square feet per gallon.
5.
Ferrous metal should be clean and rust free. Prime using 33304/99953 CHEM-O-PON or 3090 MULTI-GRIP II primer at a rate of 200-300 square feet per gallon.
6.
Galvanized metal should be solvent-wiped and primed with 3090 MULTI-GRIP II primer at a rate of 400- 500 square feet per gallon.
C.
Acrylic Coating: Apply Neocrylic HB coating as a one or two-coat system. Apply at a rate of 75-100 sf/gal achieving a total dry- lm thickness (DFT) of 6- 8 mils per coat for smooth texture and 8-11 mils for Fine texture.
3.11
APPLICATION - WALL GARD HD INTERIOR WALL AND CEILING COATING
A.
Apply in accordance with manufacturer's instructions.
B.
Concrete or Block Wall:
1.
Series 1: Standard:
a.
Primer: Mix 70714/70715 clear epoxy at a ratio of 2:1 for three minutes. Apply at a minimum rate of 320 sf/gal (6 mils WFT to yield 6 DFT) to prepared substrate and allow to cure 8- 12 hours @ 70 degrees F (21 degrees C) or until tack-free.
b.
Base Coat: Mix 70724/70715 epoxy mastic at a ratio of 3:1 for three minutes. Apply at a minimum rate of 100 sf/gal (16 mils WFT to yield 16 DFT) and allow to cure 8- 12 hours @ 70 degrees F (21 degrees C) or until tack free.
c.
First Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure for 4- 6 hours @ 70 degrees F (21 degrees C) or until tack free.
d.
Second Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure 4-6 hours @ 70 degrees F (21 degrees C).
e.
Do not exceed 24 hours between Topcoat applications. If this recoat window is missed, surface will need to be lightly abraded.
2.
Series 2: Fabric Reinforced:
a.
Primer: Mix 70714/70715 clear epoxy at a ratio of 2:1 for three minutes. Apply at a minimum rate of 320 sf/gal (6 mils WFT to yield 6 DFT) to prepared substrate and allow to cure 8- 12 hours @ 70 degrees F (21 degrees C) or until tack-free.
b.
Base Coat: Mix 70724/70715 epoxy mastic at a ratio of 3:1 for three minutes. Apply at a minimum rate of 100 sf/gal (16 mils WFT to yield 16 DFT). Embed 63UJB Fiberglass mesh into wet base coat material. Allow to cure 8- 12 hours @ 70 degrees F (21 degrees C) or until tack-free. Apply a second coat of 70724/70715 epoxy mastic over mesh at a rate of 100 sf/gal (16 mils WFT to yield 16 mils DFT) and allow to cure for 8- 12 hours @ 70 degrees F (21 degrees C) or until tack free. Prior to application of the Topcoat, surface may need to be sanded to ensure a smooth surface appearance.
c.
First Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure for 4-6 hours @ 70 degrees F (21 degrees C) or until tack free.
d.
Second Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure 4-6 hours @ 70 degrees F (21 degrees C).
e.
Do not exceed 24 hours between Topcoat applications. If this recoat window is missed, surface will need to be lightly abraded.
C.
Drywall:
1.
Series 1: Standard:
a.
Primer: Prime drywall with a Polyvinyl Acetate (PVA) primer. Follow manufacturer's recommendations for coverage rates.
b.
First Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure 4-6 hours @ 70 degrees F (21 degrees C) or until tack free.
c.
Second Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure for 4-6 hours @ 70 degrees F (21 degrees C).
d.
Do not exceed 24 hours between Topcoat applications. If this recoat window is missed, surface will need to be lightly abraded.
2.
Series 2: Fabric Reinforced:
a.
Primer: Prime drywall with a Polyvinyl Acetate (PVA) primer. Follow manufacturer's recommendations for coverage rates.
b.
Base Coat: For anticipated mechanical abuse (or if requested): Mix 70724/70715 epoxy mastic at a ratio of 3:1 for three minutes. Apply at a minimum rate of 100 sf/gal (16 mils WFT to yield 16 DFT). Embed 63UJB Fiberglass mesh into wet base coat material. Allow to cure 8- 12 hours @ 70 degrees F (21 degrees C) or until tack-free. Apply a second coat of 70724/70715 epoxy mastic over mesh at a rate of 100 sf/gal (16 mils WFT to yield 16 mils DFT) and allow to cure for 8- 12 hours @ 70 degrees F (21 degrees C) or until tack free. Note: Prior to application of the Topcoat, surface may need to be sanded to ensure a smooth surface appearance.
c.
First Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure 4-6 hours @ 70 degrees F (21 degrees C) or until tack free.
d.
Second Topcoat: Mix 70900/70910 series water based urethane at a ratio of 3:1 for three minutes. Apply at a rate of 200- 267 sf/gal (6- 8 mils WFT to yield 3- 6 mils DFT) and allow to cure for 4-6 hours @ 70 degrees F (21 degrees C).
e.
Do not exceed 24 hours between Topcoat applications. If this recoat window is missed, surface will need to be lightly abraded.
3.12
CLEANING
A.
Clean any splatters or spills with water before material dries. Once dried coatings may be difficult to remove and may require mechanical removal.
B.
Remove temporary coverings and protection from adjacent work areas.
C.
Clean up and properly dispose of debris remaining on project site related to application.
3.13
PROTECTION
A.
Protect adjacent surfaces prior to starting Work.
1.
Provide adequate ventilation.
2.
Post warning signs as required.
B.
Sprayed coatings shall protect adjacent areas from overspray from spraying coating materials including:
1.
Post warning signs a minimum of 100 feet from the work area.
2.
Cover all intake vents near the work area.
3.
Set up wind breaks when needed.
4.
Minimize or exclude all personnel not directly involved with coating application.
5.
Protect plants, vegetation and animals that might be affected by coatings. Use drop cloths or masking as required.
C.
After completion of application, do not allow contact with coated surfaces until completely cured.
D.
Protect installed products until completion of project.
E.
Touch-up, repair or replace damaged surfaces before Substantial Completion.
3.14
SCHEDULES
 
** NOTE TO SPECIFIER ** Retain Paragraph below if required to suit project requirements. Identify products by name on the Drawings or use this paragraph to define the location of each type of material to be used. The following are some examples of schedule references. Edit as required to suit project or delete and identify products on the Drawings.
 
A.
:
B.
:
END OF SECTION