BASF MasterSeal NP1 Caulk 10oz (Limestone)

MasterSeal NP1 sealant is a one-component, high-performance, non-priming, gun-grade, elastomeric polyurethane. MasterSeal NP1 sealant requires no mixing, and typically you'll need no priming to bond many materials, concrete and masonry included. Used as an acoustical sealant, MasterSeal NP 1 lowers 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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