Sikaflex® NP 1 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.
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One-component formula requires no mixing, helping to reduce labor costs
Joint movement capability ±35% provides excellent flexibility for keeping moving joints weathertight
Easy to gun and tool, speeding up application and making neater joints
