Below-Grade Gas Retarders

Find and specify below-grade gas retarders from top manufacturers with NBS Source. Browse 1 products that are ready to use on your projects. Classification 07 26 23.

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Stego Wrap Vapor Barrier

Verified 20 days ago

Stego Industries

Stego Wrap Vapor Barrier is made with our proven trade secret blend of prime virgin resins and additives. Stego Wrap 15-MIL Vapor Barrier is an ASTM E1745 Class A Vapor Barrier (Below 0.01 perms).

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