List of featured suppliers of SEALANTS Mastic: by Special Function: Weathersealing on Building Products Index
Sealants and mastics with special function, specifically for weathersealing, are materials used to fill gaps, cracks, and joints in construction projects to prevent water, air, and dust from penetrating the building envelope. These materials typically have excellent adhesion to a variety of substrates and can withstand exposure to harsh weather conditions, such as extreme temperatures, UV radiation, and moisture. They are commonly used in exterior applications, like windows, doors, roofing, and siding, and can also be used in interior applications where air leaks can cause energy inefficiency or compromise indoor air quality.
