Polyurethane Selant Limestone 10 oz (2-Pack)

Sikaflex NP1 is a one-component, high-performance, non-priming, gun-grade, elastomeric polyurethane sealant. It requires no mixing and typically requires no priming to bond to many materials, including concrete and masonry. Used as an acoustical sealant, Sikaflex NP 1 reduces sound transmission in partition systems to support high STC values by sealing spaces around cut-outs and at perimeters of partitions. The sealant cures to a tough rubber to form a long-lasting acoustical seal.

• One-component formula requires no mixing, helping to reduce labor costs
• Joint movement capability 35% provides excellent flexibility for keeping moving joints weathertight
• Interior and exterior
• Weather resistant for long-lasting weathertight seals