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Gaco Western Develops BleedTrap™ to Protect Silicone Roofs from Asphalt Bleed-Through

January 9, 2025

GacoFlex A4207 BleedTrap is a single-component, water-based sealer for asphalt roofing. The primary usage of BleedTrap is to encapsulate the oil that commonly exudes from roofing substrates containing bitumen, including built-up roofing (BUR), all types of ModBit and smooth or granulated asphaltic roofing membranes. After BleedTrap is applied, the oils and plasticizers that usually migrate to a roof's surface become trapped inside the sealer to inhibit bleed-through. The result is a GacoFlex silicone roof free from discoloration or staining. In addition, the exceptional film build of BleedTrap provides a smoother surface for easy top coat application of all GacoFlex Solvent-Free Silicone Coatings.

Chuck Skalski, VP Sales GacoFlex Coatings remarks, "BleedTrap will inhibit bleed-through on all our GacoFlex Solvent-Free Silicones, but it is an essential part of the S21 Roof Coating System that allows Gaco to provide a 5-Year Brightness Warranty."

The use of BleedTrap followed by a thin primer coat of GacoFlex E5320 2-Part Epoxy Primer/Filler is required to ensure adhesion and to be eligible for the 5-Year Brightness Warranty offered on GacoFlex S2100 Cleanable Solvent-Free Silicone Coating when applied over asphaltic and bitumen-containing substrates.

For more information, please visit www.gaco.com or call 800-456-4226 to speak with a GacoFlex Area Manager near you. 

About Gaco Western
Founded in 1955, Gaco Western remains today a family-owned business with its roots in technology and product innovation. The Gaco family of brands offer best-of-class solutions for a variety of commercial, industrial, and residential applications including specialty coatings for roof, pedestrian and traffic decking, and spray polyurethane foam insulation. Products are available nationwide.

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