Sto Corp.
3800 Camp Creek Parkway
Building 1400, Suite 120
Atlanta, GA 30331
Tel: 404-346-3666
Toll Free: 1-800-221-2397
Fax: 404-346-3119
www.stocorp.com
81273 StoCoat® X-black IR Reflective Coating
Acrylic-Based IR Reflective Exterior Wall Coating for Vertical Above-Grade
EIFS, Stucco, Concrete Masonry, Brick, Fiber Cement, Wood Trim and Siding
SECTION 099723
StoCoat®
Note: One of the
X-black primer products listed in this specification is required
with StoCoat® X-black IR Reflective Coating. Multiple primers are available. The primer
selection depends on the type of substrate and texture preference. Your local Sto
representative or Sto Technical Services Representative can assist you in selecting the
appropriate primer for the substrate.
Multiple textures may be specified on a given project for architectural reasons. If applicable,
indicate on project drawings and finish schedule areas for different textures and include all
appropriate textured primer products in the final specification.
PART 1 – GENERAL
1.01
SUMMARY
A.
1.02
SUBMITTALS
A.
1.03
C.
1.05
Product Data: Submit manufacturer's product data and installation instructions for
each material and product used. Include manufacturer's Material Safety Data Sheets.
REFERENCES
A.
B.
1.04
Provide acrylic-based primer and IR-reflective coating for vertical, above-grade walls
constructed of EIFS, stucco, concrete masonry, brick, fiber cement, wood trim and
siding.
South Coast Air Quality Management District (SCAQMD) Rule 1116
Environmental Protection Agency (EPA) 40 CFR Part 59, National Volatile Organic
Compound Emission Standards for Architectural Coatings
California Air Research Board (CARB)
QUALITY ASSURANCE
A.
Manufacturer's Qualifications: The manufacturer shall be a company with at least
twenty years experience and regularly engaged in the manufacture and marketing of
products specified herein. The manufacturer shall have an ISO 9001:2008 certified
quality system and ISO 14001:2004 Environmental Management System.
B.
Installer's Qualifications: The contractor shall be qualified to perform the work
specified by reason of experience.
DELIVERY, STORAGE AND HANDLING
A.
Deliver products in original packaging, labeled with product identification,
manufacturer, batch number and shelf life.
Sto Guide Specification
Issued: April 2013
Sto Corp. is ISO 9001:2008 and 14001:2004 Registered
Page 1 of 5
Specification 81273 StoCoat X-black
Acrylic-Based, Vertical Above-Grade Exterior IR Reflective
Wall Coating
B.
Store products in a dry area with temperature maintained between 45 and 100
degrees F (7 and 37.7 degrees C). Protect from direct sunlight. Protect from freezing.
Protect from extreme heat (>100 degrees F (37.7 degrees C)).
C.
Handle products in accordance with manufacturer's printed recommendations.
PART 2 – PRODUCTS
2.01
MATERIALS
A.
Primer (select based on type of substrate and texture preference)
NOTE: One of the following primers is required for use with StoCoat X-black IR Reflective
coating.
1. Provide smooth, high-pH-resistant, acrylic-based primer for use on cementitious
substrates: concrete, concrete masonry, stucco; and other substrates: EIFS,
wood, brick and previously painted surfaces.
A. Product: 81278 StoCoat® X-black Smooth Primer
B. Manufacturer: Sto Corp., 3800 Camp Creek Parkway, Building 1400,
Suite 120, Atlanta, Georgia 30331. (800) 221-2397 www.stocorp.com
C. Performance and Physical Properties: Meet or exceed the following
values for material cured at 77 degrees F (25 degrees C) and 50 percent
relative humidity (unless otherwise specified).
1. Application: Spray, roller, or brush.
2. VOC: < 100 g/L, EPA 24, complies with SCAQMD Rule 1113,
EPA 40 CFR Part 59 and CARB requirements.
2. Provide textured, high-pH-resistant, acrylic-based primer for use on cementitious
substrates: concrete, concrete masonry, stucco; and other substrates: EIFS,
wood, brick and previously painted surfaces.
A. Products: StoCoat® X-black Textured Primer
1. 81277 StoCoat X-black Textured Primer Sand
2. 81276 StoCoat X-black Textured Primer Fine
3. 81274 StoCoat X-black Textured Coarse
B. Manufacturer: Sto Corp., 3800 Camp Creek Parkway, Building 1400,
Suite 120, Atlanta, Georgia 30331. (800) 221-2397 www.stocorp.com
C. Performance and Physical Properties: Meet or exceed the following
values for material cured at 77 degrees F (25 degrees C) and 50 percent
relative humidity (unless otherwise specified).
1. Application: Spray, roller, or brush.
2. VOC: < 100 g/L, EPA 24, complies with SCAQMD Rule 1113,
EPA 40 CFR Part 59 and CARB requirements.
3. Provide smooth bonding primer/undercoat.
Sto Guide Specification
Issued: April 2013
Sto Corp. is ISO 9001:2008 and 14001:2004 Registered
Page 2 of 5
Specification 81273 StoCoat X-black
Acrylic-Based, Vertical Above-Grade Exterior IR Reflective
Wall Coating
A. Product: 81270 StoCoat® X-black Multi Surface Primer
B. Manufacturer: Sto Corp., 3800 Camp Creek Parkway, Building 1400,
Suite 120, Atlanta, Georgia 30331. (800) 221-2397 www.stocorp.com
C. Performance and Physical Properties: Meet or exceed the following
values for material cured at 77 degrees F (25 degrees C) and 50 percent
relative humidity (unless otherwise specified).
1. Application: Spray, roller, or brush.
2. VOC: < 100 g/L, EPA 24, complies with SCAQMD Rule 1113,
EPA 40 CFR Part 59 and CARB requirements.
B.
IR Reflective Top Coating
1. Provide 100% acrylic IR-reflective coating for exterior walls.
A. Product: 81273 StoCoat® X-black IR Reflective Coating
B. Manufacturer: Sto Corp., 3800 Camp Creek Parkway, Building 1400,
Suite 120, Atlanta, Georgia 30331. (800) 221-2397 www.stocorp.com
C. Performance and Physical Properties: Meet or exceed the following
values for material cured at 77 degrees F (25 degrees C) and 50 percent
relative humidity (unless otherwise specified).
1. Application: Spray, roller, or brush.
2. VOC: < 50 g/L, EPA 24, complies with SCAQMD Rule 1113, EPA
40 CFR Part 59 and CARB requirements.
PART 3 – EXECUTION
3.01
INSTALLATION
A.
Examine substrates and conditions under which materials will be installed. Do not
proceed with installation until unsatisfactory conditions are corrected by the
appropriate trade.
B.
Coordinate installation with adjacent work to ensure proper sequence of construction.
Protect adjacent areas and landscaping from contact due to mixing, handling and
application of materials.
C.
Surface Preparation:
following.
Comply with manufacturer's printed instructions and the
1.
Remove all bond-inhibiting materials including oil, mildew, dust, dirt,
efflorescence, and laitance.
2.
Surface must be dry at time of application, frost-free and within the published
application temperature range for the product being used.
3.
Cast-in-place concrete, precast concrete and stucco surfaces must be
properly cured and minimum 28 days old or have pH less than 10 before
application of StoCoat X-black coatings.
Sto Guide Specification
Issued: April 2013
Sto Corp. is ISO 9001:2008 and 14001:2004 Registered
Page 3 of 5
Specification 81273 StoCoat X-black
Acrylic-Based, Vertical Above-Grade Exterior IR Reflective
Wall Coating
D.
E.
4.
Concrete masonry shall be properly cured and minimum 28 days old before
application of StoCoat X-black coatings.
5.
All poorly bonded, loose or chalked coatings must be removed from
previously painted substrates before application of StoCoat X-black coatings.
6.
Test adhesion on substrates where adhesion is difficult or uncertain. Apply a
test area of the primer to the prepared substrate and allow to cure for one
week, then test adhesion. If adhesion is unsatisfactory, re-prepare the
surface with a more aggressive method and retest adhesion of the primer.
Mixing: Comply with manufacturer's printed instructions and the following.
1.
StoCoat X-black Multi Surface Primer and StoCoat X-black Textured
Primers: Stir thoroughly and apply as material comes from the container. DO
NOT ADD WATER.
2.
StoCoat X-black Smooth Primer and StoCoat X-black IR Reflective
Coating: Stir thoroughly. If thinning is required, add maximum 1/2-pint (0.24
L) clean water per gallon and stir thoroughly.
Application: Comply with manufacturer's printed instructions and the following:
1.
Apply when ambient and surface temperatures are 45 degrees F (7 degrees
C) and expected to remain above 45 degrees F (7 degrees C) for 24 hours.
2.
Do not apply in freezing conditions or during precipitation.
3.
X-black Smooth Primer: Apply with high quality nylon polyester brush, ½” 1” nap roller or airless sprayer via .025-029 spray tip to 16-20 wet mils. Two
coat application is recommended to achieve required film build. To assure
color uniformity, always intermix multiple containers of custom tinted and
stock colors. Apply a small test sample to verify color. Always paint to a
natural architectural break, such as a corner or edge. Back-roll spray
applications to ensure proper adhesion, and an even application. Maintain a
wet edge during application by brushing,rolling or spraying into freshly applied
coating area.
4.
X-black Textured Primer: Apply with high quality nylon polyester brush, 1/2”
-1” nap roller or Graco GM 1030 Tex Sprayer or similar. Mix thoroughly
before use. Apply additional coats as necessary to achieve required film build.
To assure color uniformity, always intermix multiple containers of custom
tinted and stock colors. Apply a small test sample to verify color. Always paint
to a natural architectural break, such as a corner or edge. Back-roll spray
applications to ensure proper adhesion, and an even application. Maintain a
wet edge during application by brushing,rolling or spraying into freshly applied
coating area.
5.
StoCoat X-black Multi Surface Primer: Apply with high quality nylon
polyester brush, 3/8” -1/2” nap roller or airless sprayer via .013-.015 spray tip
to 3-6 wet mils. Always paint to a natural architectural break, such as a
corner or edge. Back-roll spray applications to ensure proper adhesion, and
an even application. Maintain a wet edge during application by brushing,
rolling or spraying into freshly applied coating area.
Sto Guide Specification
Issued: April 2013
Sto Corp. is ISO 9001:2008 and 14001:2004 Registered
Page 4 of 5
Specification 81273 StoCoat X-black
Acrylic-Based, Vertical Above-Grade Exterior IR Reflective
Wall Coating
6.
X-black IR Reflective Coating May be applied by high quality nylon
polyester brush, 3/8” -1/2” nap roller or airless sprayer via a .017-.019 tip to 4
to 4.6 wet mils. To achieve required film build it is recommended to apply two
coats. To assure color uniformity, always intermix multiple containers of
custom tinted and stock colors. Apply a small test sample to verify color.
Always paint to a natural break, such as a corner or edge. During spray
application, it is recommended to back-roll the surface area to ensure proper
adhesion, and an even coat application. Maintain a wet edge during
application by brushing, rolling or spraying into freshly applied coating area.
7.
Protect installed materials from rain, freezing, and continuous high humidity
until completely dry.
8.
Do not overcoat with solvent-based materials.
END OF SECTION
Copyright 2013 Sto Corporation. All Rights Reserved.
A copyright license to reproduce this specification is granted to specifying architects and engineers.
ATTENTION
Sto products are intended for use by qualified professional contractors, not consumers, as a component of a larger construction
assembly as specified by a qualified design professional, general contractor or builder. They should be installed in accordance
with those specifications and Sto’s instructions. Sto Corp. disclaims all, and assumes no, liability for on-site inspections, for its
products applied improperly, or by unqualified persons or entities, or as part of an improperly designed or constructed building,
for the nonperformance of adjacent building components or assemblies, or for other construction activities beyond Sto’s control.
Improper use of Sto products or use as part of an improperly designed or constructed larger assembly or building may result in
serious damage to Sto products, and to the structure of the building or its components. STO CORP. DISCLAIMS ALL
WARRANTIES EXPRESS OR IMPLIED EXCEPT FOR EXPLICIT LIMITED WRITTEN WARRANTIES ISSUED TO AND
ACCEPTED BY BUILDING OWNERS IN ACCORDANCE WITH STO’S WARRANTY PROGRAMS WHICH ARE SUBJECT
TO CHANGE FROM TIME TO TIME. For the fullest, most current information on proper application, clean-up, mixing and other
specifications and warranties, cautions and disclaimers, please refer to the Sto Corp. website, www.stocorp.com.
Sto Guide Specification
Issued: April 2013
Sto Corp. is ISO 9001:2008 and 14001:2004 Registered
Page 5 of 5