VaporCheck Mastic
VAPORCHECK® MASTIC is a single component, trowel grade, polymer modified, water based emulsion designed as a waterproofing and vapor barrier. VAPORCHECK® MASTIC cures to form a tough, seamless, elastomeric membrane which exhibits excellent resistance to moisture and vapor transmissions. VAPORCHECK® MASTIC has been specifically formulated to act as a waterproofing and vapor barrier for use in conjunction with VIPER® under-slab vapor barriers. VAPORCHECK® MASTIC is applied by trowel or putty knife to and around penetrations through VIPER® under-slab vapor barriers. It may also be applied to exterior vertical or horizontal surfaces of cast-in-place concrete, concrete masonry units, wood, metal, foam, OSB and ICFs. VAPORCHECK® MASTIC is suitable for both new and retrofit construction.
VAPORCHECK® MASTIC is a latex modified asphalt clay emulsion with polymers and colloids to formulate a waterproof coating. VAPORCHECK® MASTIC is 100% free of Asbestos, VOCs and HAPs.
VAPORCHECK® MASTIC is supplied in 5-gallon (18.9 L) pails and 28 oz. (.83 L) caulking tubes. VAPORCHECK® MASTIC has a shelf life of six months. The recommended storage temperature range is 70ºF to 140ºF (21ºC and 60ºC).
VAPORCHECK® MASTIC is 100% free of VOCs, HAPs and Asbestos.
VAPORCHECK® MASTIC should NOT be applied if rain is eminent or during cold weather below 50°F (10°C). VAPORCHECK® MASTIC cures in about 24 hours depending on the temperature and humidity
NOTE: VAPORCHECK® MASTIC needs to be stirred prior to use. For pipe and rebar penetrations cut and install Viper under-slab vapor barriers tightly to penetration. Apply VAPORCHECK® MASTIC around penetration and over any exposed sub-surface. For larger openings around penetrations, first install self-adhering VIPER® VAPORPATCH. Then seal remaining exposed areas with VAPORCHECK® MASTIC. Doing so provides a structurally sound, clean and dry area of adhesion to ensure a complete seal around the penetration.VAPORCHECK® MASTIC has a thick consistency and should be applied by trowel or putty knife around all penetrations in one or two coats. It is recommended that VAPORCHECK® MASTIC be applied to an application thickness of 60 mils wet, which will yield 40 mils dry. These yields equate to an application rate of 25 square feet per gallon. The coating will be dry to the touch within 10 minutes, but should be allowed to cure for 4 to 24 hours after installation. DO NOT backfill or cover for 24 hours after installation. DO NOT allow more than 10 days to elapse before covering. NOTE: VAPORCHECK® MASTIC is self priming and does not require the use of a primer. It has been tested compatible with all ABAA certified transition membranes and can be applied below and/or above these membranes
VAPORCHECK® MASTIC is resistant to chemical attack and is very resistant to acids and salts. It should not be applied on surfaces that exceed 210ºF.
VAPORCHECK® MASTIC can be cleaned while wet with soap and water. If the VAPORCHECK® MASTIC has cured; it can be removed with mineral spirits. NOTE: DO NOT re-use container. DO NOT contaminate water, food or feed by storage or disposal. The open dumping of the container is prohibited. Consult Federal, State or Local disposal authorities for approved alternate procedures.