Elastomeric Roofing - TOPCOAT XR-2000 Kynar Coated Metal



TOPCOAT® XR-2000 is a white, water-based 100% acrylic adhesion promoting primer designed to enhance the adhesion of the TOPCOAT® Roofing System to pre-finished metal roofing. Due to the wide variety of pre-applied finishes, suitability of TOPCOAT® XR-2000 must be tested on an individual basis.**


TOPCOAT® XR-2000 is designed to enhance the adhesion of the TOPCOAT® Roofing System to pre-finished metal roofing, including those containing fluoropolymers such as Kynar® or siliconized polyesters. 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.

  • Non-flammable, VOC compliant and easy clean up

  • Good adhesion to factory coated metal roofing

  • Has rust inhibiting properties

  • Limited material warranty available for up to 10 years*

  • Available in 1-gallon, 5-gallon, and 55-gallon containers

For application questions, please contact GAF Contractor Services at

Applicable Standards

ASTM B-117, ASTM E-1644, ASTM C-794, ASTM D-1475

Note: Repair leaks promptly to avoid adverse effects, including mold growth

*See warranties for complete coverage and restrictions
**See TOPCOAT® metal specifications for testing procedure

TOPCOAT® XR-2000 Technical Data
Application Rate: 0.75 gallons/100 sq. ft.
Application Method: Airless sprayer or roller
Application Temp (air, surface): 42°F – 120°F
Drying Time (75°F, 50% RH): Approximately 6 hours
Wet Mil Thickness: 12 wet mils
Dry Mil Thickness: 5 dry mils
Total Solids (by weight): 52.5% ± 1%
Total Solids (by volume): 40% ± 1%
Specific Gravity: 1.22 ± 0.1
Weight per Gallon: 10.2 ± 0.5 lbs
Viscosity (75°F): 3,500 ± 350 cps
Storage: Store in well-ventilated area at 50°F to 80°F; protect from freezing
Shelf Life: 1 Year
Clean-up: Water before curing


All documents are U.S. English unless otherwise noted

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