TOPCOAT® Membrane
Description
TOPCOAT® Elastomeric Roofing Membrane is a water-based, spray-applied liquid, which
cures to form a seamless 100% acrylic elastomeric membrane specially designed to
seal the entire roof. TOPCOAT® is an ENERGY STAR® qualified reflective product that
will help to reduce building temperatures. TOPCOAT® is listed by the Cool Roof Rating
CouncilSM for solar reflectance and thermal emittance. It offers high
tensile strength and elongation, and is virtually undamaged by extended exposure
to solar ultraviolet energy. Ultraviolet rays enhance curing. It is low in VOC,
non-flammable and presents minimal hazard to the applicator and the environment.
It is available in white (for maximum reflectivity) and 15 standard colors. Custom
tinting is available upon request.
Uses
TOPCOAT® Elastomeric Roofing Membrane is designed to protect and waterproof metal,
wood, copper, PVC, transite and concrete roof substrates for many years. Substrate
shall not pond water for a period longer than 48 hours. Surface must be free of
ponding water, ice, snow and debris prior to application. Do not apply at temperatures
below 42°F. Substrate temperatures must be below 120°F when applying product.
Advantages
- ENERGY STAR® qualified reflectivity can dramatically decrease building temperatures
- Highly reflective and listed by the Cool Roof Rating CouncilSM
for solar reflectance and thermal emittance
- California Title 24 Compliant
- Offers high tensile strength and elongation, and is virtually undamaged by extended
exposure to solar ultraviolet energy
- Low VOC, non-flammable, and presents minimal hazard to the applicator or the environment
- Cures and becomes stronger under the sun’s ultraviolet rays
- Water-based for superior protection and easy application
- Is available in white (for maximum reflectivity) and 15 standard colors (custom
tinting is available upon request)
- Limited material warranty available for up to 10 years*
- Guarantees available for up to 20 years*
- Is available in 1-gallon, 5-gallon, and 55-gallon containers in addition to bulk
totes
For application questions, please contact GAFMC Contractor Services at
1-800-766-3411.
Applicable Standards
ASTM D-1653, ASTM D-412, ASTM G-26, ASTM G-29, ASTM B-117, ASTM C-794, ASTM G-21,
FTMS 141.6271, FTMS 141.6221, ASTM D-2243-90, ASTM D-2196, ASTM D-2240, ASTM D-2794,
ASTM D-1475, ASTM E-1644, ASTM D-2697, ASTM E-470, ASTM G-53
Note: Repair leaks promptly to avoid adverse effects, including
mold growth. TOPCOAT® can be utilized as a direct replacement for TOPCOAT® CRT.
*See warranties and guarantees for complete coverage and restrictions
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TOPCOAT® Elastomeric Roofing Membrane Technical Data
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Application Rate:
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1.0 to 3.0 gallons/100 sq.ft. total, varies by system
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Application Method:
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Airless sprayer, brush, or roller
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Application Temp (air, surface):
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42°F – 120°F
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Drying Time (75°F, 50% RH):
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Approximately 24 hours per coat
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Wet Mil Thickness:
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(1.0 Gallon/100SF) – 16 wet mils
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Dry Mil Thickness:
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(1.0 Gallon/100SF) – 9 to 10 dry mils
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Total Solids (by weight):
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71% ± 3%
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Total Solids (by volume):
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58% ± 2%
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Specific Gravity:
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1.48 ± 0.06
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Weight per Gallon:
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12.3 ± 0.5 lbs
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Viscosity (75°F):
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19,000 ± 3,000 cps
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pH:
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10.0 ± 1.0 lbs
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Elongation:
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375% ± 25%
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Tensile Strength:
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275 ± 25 psi
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Water Permeability:
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5.28 perm inch (ASTM D-1653)
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Freeze-Thaw Stability:
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Passes five (5) cycles
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Low Temp Flexibility:
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35 mil dry film will bend 180° @ -30°F without fracturing
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Weatherability :
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1,000 hours Atlas Weather-o-meter® exposure per ASTM D-412, ASTM G-26,
Tensile Strength: 150% of original, Elongation: 85% of original, 1,500 hours Atlas
Weather-o-meter® exposure per ASTM D-412, ASTM G-26, No cracking, embrittlement,
loss of adhesion or discoloration, 2,000 hours UV exposure, type UV bulb, per ASTM
G-53, No cracking, embrittlement, loss of adhesion or discoloration
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Initial Reflectivity:
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0.85 (white only)
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Aged Reflectivity:
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0.68 (white only)
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Initial Emissivity:
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0.90 (white only)
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Aged Emissivity:
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0.88, 3 year (white only)
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Initial SRI:
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107 (white only)
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Aged SRI:
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83 (white only)
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Storage:
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Store in well-ventilated area at 50°F to 80°F; protect from freezing
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Shelf Life:
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1 Year
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Clean up:
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Water and mild soap before curing
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