BASF Masterseal NP1 Polyurethane Sealant – 600ML Sausage


MasterSeal 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 acoustic sealant, MasterSeal NP 1 reduces sound transmission in partition systems to support high STC values by sealing spaces around cut-outs and at perimeters of partitions.



  • Available in 600ML Sausages (ProPaks) & 300ML Cartridges
  • Wide temperature application range makes MasterSeal NP 1 suitable for all climates
  • Suitable for water immersion with documented performance in wet areas
  • One-component formula requires no mixing, helping to reduce labor costs
  • Easy to gun and tool, speeding up application and making neater joints
  • No primer required for most construction materials lowering installation costs
  • Weather resistant for long-lasting weather tight seals
  • Compatible with non-rigid coatings and can be painted

Additional information


Aluminum Gray, Black, Limestone, Medium Bronze, Off White, Redwood Tan, Special Bronze, Stone, Tan, White


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