Stego® Mastic

Strong, Flexible, and Vapor Resistant

USES: Stego Mastic is designed to be used as a waterproofing and vapor retardant membrane for use in conjunction with Stego Wrap 10-mil and 15-mil Vapor Retarder/Barrier. Stego Mastic can be used as an alternate to boots for pipe penetrations in Stego Wrap Vapor Barrier.

COMPOSITION: Stego Mastic is a medium-viscosity, water-based, polymer-modified anionic bituminous/ asphalt emulsion.

SIZE: Stego Mastic comes in two-gallon and five-gallon buckets.

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Stego has the accessories you need to complete an ASTM E1643-compliant installation. Stego Tape, Stego Mastic, Stego Crete Claw Tape and StegoTack Tape enable efficient vapor barrier installations, saving time and resources.

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Stego Tape

A low permeance tape designed for use...

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Stego Mastic

A liquid applied vapor retardant membrane...

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Crete-Claw-Tape

Stego Crete Claw Tape

A multi-layered tape...

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StegoTack

A double-sided adhesive strip used to bond...

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