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Gaco Roof Silicone

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Gaco Roof Silicone

Prepare seams and fasteners and create or repair flashings:

GacoFlex SF2000 SeamSeal Solvente-Free Silicone Sealant.

Adheres to seams fasteners and other roof details in a single application. This is an effective time saving waterproof alternative to fabric and or elastomeric sheet tape.

SF2000 Seam.

Seal can be used as substitute for caulk on a variety of roof surfaces and can ever be a filter over exiting “alligatored” smooth BUR.


It will repair blisters in spray polyurethane foam up to 4 inches in diameter and works perfectly as a tape-seal over cracked polyurethane foam insulation.

GacoFlex 66S Reinforcing Polyester Mesh is also available for uneven surfaces and difficult situations.

GacoFlex S20 Solvent-Free 100% Silicone Coating Whether your roof is large or small, flat or sloped, GacoFlex S20 Series Solvent-Free 100% Silicone Roof Coatings provide a proven, guaranteed solution for renewing your weathered and leaking roof. They can be applied to virtually any existing roof to create a durable, glossy, seamless membrane that seals and protects against permanent ponding water, ultraviolet light and severe weather.


GacoFlex S20 is certified to NSF P151, an independent testing protocol for rainwater catchment systems, and found not to impart contaminants that exceed the U.S. Environmental Protection Agency’s drinking water regulations or advisories.

GacoFlashFoam Spray-Applied 3 lb. Polyurethane Foam Flashing GacoFlashFoam is a high density, 3 lb. closed cell polyurethane foam designed for use as spray-applied flashings at curbs, parapets, walls and penetrations prior to application of GacoFlex Coatings. GacoFlashFoam bonds to any shape or substrate and eliminates common sources of leaks often experienced with other flashings. It may also be used to repair existing spray foam roofing systems.


GacoFlex SF4236 WalkPad A stay-put solution for creating highly-visible rooftop walkways. GacoFlex WalkPad is a durable, silicone-based, solvent-free sealant that is combined with a reinforcing agent to provide durability and resistance to traffic and tears. When applied on top of GacoFlex coatings and other roofing materials, GacoFlex WalkPad provides a walkway for pedestrian maintenance traffic and its yellow color provides high visibility. GacoFlex Walkpad can be applied with a brush or trowel to make the process of creating a rooftop walkway surface fast and easy.