List of featured suppliers of SEALANTS Mastic: by Composition: Silicone on Building Products Index
A sealant or mastic composed of silicone is a viscous, flexible material that is used to fill gaps and seal joints in order to prevent air, water, or other substances from passing through. It is typically composed of a silicone-based polymer, which provides excellent adhesion to a variety of surfaces, as well as resistance to heat, water, and weathering. Silicone sealants and mastics are commonly used in a wide range of applications, including construction, automotive, and industrial settings.