![]() Cut through both pieces at a 45-degree angle with a long-bladed knife. Tip: If needed, cut and fit small filler pieces of tape to fill panel corrugation or voids. Remove release liner to expose adhesive face of tape. For easier cutting spray knife or scissors with mist of water. Start and finish ends must be cut square. Remove shrink wrap.Ĭut in front of colored marking tape and pull back release liner to expose mounting adhesive. ![]() Only open materials that will be immediately used. Unroll material, allow it to expand, then recompress it between surfaces to be sealed. Should material expand in package it can still be used. IMPORTANT: Reels must be stored FLAT and kept compact. There should exist sufficient depth to receive full width of the sealant. Joint faces should be dry and cleaned of dirt, oils, grease, etc. Tip: For faster expansion in cold conditions keep the material warm before use and, if desired, apply heat from a hair dryer to installed material to accelerate expansion. Expansion will be faster at higher temperatures and slower at lower temperatures. Tape should be stored in a warm dry interior location. The material contains a pressure sensitive mounting-adhesive on one face to facilitate installation. Typically, higher compression levels are required for watertightness in standing water or water run-off applications lower compression can be used, for example, for snow seals at roof ridges (see compression chart below).ĮMSEAL MST is packaged precompressed in rolls. Users determine the size of MST suited to their specific application and performance needs. MST is available in a wide variety of configurations. Typically, higher compression levels are required for watertightness in water run-off applications lower compression can be used, for example, for snow seals at roof ridges. As the sealed components shrink and expand with seasonal temperature changes, long-term sealing contact with the substrates is maintained.Īt installation the tape is held to a level of compression suitable to the intended application. This pressure, combined with the adhesive nature of the impregnation, assures reliable adhesion to both substrates. The stored strain-energy of compression in the foam means continuous back-pressure is exerted against surfaces to be sealed. The open-cell foam is impregnated, compressed and shipped in reels. See compression chart below for levels of sealing at respective compression levels. For applications where movement is expected, and watertightness is required, the sealant tapes can accommodate +25% and -25% (total 50%) movement of the supplied compressed size when installed in gaps equal to the supplied size. No shrinkage or blow-out due to closed-cell breakage Sizesĭownload product size chart (pdf) MovementĮmseal sealant tapes have different sealing levels at different levels of compression.Maintains a seal during thermal expansion and contraction of building panels.Will not extrude from between joints like caulk or butyl tapes.Clean handling, non-staining, odorless, UV-stable.See the image gallery to the right or the “Where to Buy” tab below. We suggest you call your local store and ask if they have it on the shelf, or order online where available. They are also a clean handling, no mess alternative to spray foam in a can.Įmseal tapes have been the sealants of choice of Do It Yourselfers, homeowners, contractors, metal roof and building component manufacturers and discerning erectors worldwide for more than 30 years.Ī number of retail partners offer Emseal’s sealant tapes under a variety of names. DIY Home Solutions MST and AST Multi-Use Sealant Tapes for numerous household usesĮmseal precompressed, sealant tapes are self-adhering, self-expanding and made from resilient, open-cell polyurethane foam impregnated with a water-based acrylic-modified asphalt emulsion (AST Hi-Acrylic) or a water-based, acrylic impregnation (MST).ĪST and MST replace and outperform liquid sealants, butyl-tape sealants, closed-cell foam tapes and open-cell weatherstripping tapes.
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