Elastomeric Roofing - TOPCOAT TPO Primer



TOPCOAT® TPO Red Primer is a VOC-compliant, solvent based thermoplastic liquid to be applied to new or aged EverGuard® TPO membranes where adhesion of TOPCOAT® water-based coatings or MajorSeal™ Liquid Flashing is desired. TOPCOAT® TPO Red primer is slightly tinted to distinguish primed areas on bright white TPO membranes. The surface of the treated area must be clean of all dirt, dust, and debris and be completely free of moisture prior to application of the primer.


TOPCOAT® TPO Red primer is a required step when coating any NEW TPO (less than 3 months aged) and recommended for improved adhesion on any aged EverGuard® TPO membranes. TOPCOAT® TPO Red primer is easy to install; it rolls on with a foam roller and dries quickly. Application of coating or sealant can begin as soon as the primer has dried completely. Compatible with TOPCOAT® water-based coating, including TOPCOAT® Membrane and TOPCOAT® MB PLUS.


  • Allows application of select TOPCOAT® coatings to NEW EverGuard® TPO (required for application to new TPO)

  • Improves adhesion of TOPCOAT® coatings to aged EverGuard® TPO

  • VOC compliant

Application Rate: 0.5/100 sq. ft. per coat
Application Method: Roller or brush
Application Temperature (air, surface): 42°F – 120°F
Drying Time (75°F, 50% RH): Approx 15 minutes
Wet Mil Thickness: Up to 5
Dry Mil Thickness: Up to 0.5
Total Solids (by weight): 2.5% ± 0.5%
Total Solids (by volume): 1%
Specific Gravity: 1.14 g/cc
Weight Per Gallon: 9.5 ± 0.5 lbs
Viscosity (75°F): 100 cps
Flash Point: 5°F
Storage: Store in well-ventilated area at 50 °F to 80 °F
Shelf Life: 1 Year
Clean-ups: Xylene, Toluene
VOCs: VOC compliant up to 1 g/l


All documents are U.S. English unless otherwise noted

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