Vulkem116 is an excellent general-purpose sealant for construction applications, it is a textured, single-component, moisture-curing, gun-grade polyurethane sealant. Vulkem 116 has a 30-year history of delivering superior primer less adhesion to porous substrates, which makes it the choice for sealing expansion joints in commercial construction applications. Vulkem 116 is rated for 25 percent movement capability and offers excellent performance in dynamic joints. Suitable for certain water immersion applications. Cure of the sealant can be accelerated with the addition of Vulkem Catalyst 45/116 as needed. Vulkem 116 meets or exceeds the requirements of the following specifications - ASTM C920 Type S, Grade NS, Class 25, Use T, NT, M, A, I class II, and O. U.S. Federal Specification TT-S-00230C, Class A, Type II, CAN/CGSB-19.13-M87. USDA regulation for indirect food contact. Canadian Food Inspection Agency. City of Los Angeles (COLA) approval standards. Vulkem 116 is an excellent general-purpose sealant for construction applications, it is a textured, single-component, moisture-curing, gun-grade polyurethane sealant.