2300^® Construction Tripolymer Sealant is a single component, high-performance elastomeric sealant for use in a wide variety of roofing, trim, architectural metal, manufacturing, underdeck system, solar roof system, and general construction applications. 10 Standard colors are now available in plastic, along with crystal clear in a clear plastic cartridge. Used for: asphalt shingles, coated steel (Kynar 500^® based finishes), concrete, vinyl, steel, and other common roofing substrates.