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BASF MasterSeal NP1 Caulk 10oz (Stone)

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.

MasterSeal NP1 sealant is a one-component, high performance, non-priming, gun-grade, elastomeric polyurethane.

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