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BASF MasterSeal NP1 Elastomeric Polyurethaning Sealant Caulking 20oz Sausages
BASF MasterSeal NP1 Sealant 10oz. Cartridge -

BASF MasterSeal NP1 Elastomeric Polyurethaning Sealant Caulking 20oz Sausages


Regular price $9.99 Sale


BASF MasterSeal NP1 Elastomeric Polyurethane Sealant

How Does MasterSeal NP 1 Work?

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 acoustical 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. The sealant cures to a tough rubber to form a long-lasting acoustical seal.

Recommended uses:

  • Interior and exterior
  • Above and below grade
  • Immersed in water
  • Expansion joints
  • Panel walls
  • Precast units
  • Aluminum and wood window frames
  • Roofing
  • Fascia
  • Parapets
  • Vinyl siding
  • Storefront assemblies

What Are the Unique Features of MasterSeal NP 1?

  • Available in ProPaks, reducing jobsite waste, lowering disposal costs
  • 12 standard colors to match a wide variety of common substrates
  • Wide temperature application range makes MasterSeal NP 1 suitable for all climates
  • UL listed — Passes 4–hour, 4–inch, fire and hose stream test when used with Ultra Block or mineral wool
  • Suitable for water immersion with documented performance in wet areas
  • Meets VOC requirements in all 50 states

What Are the Benefits of MasterSeal NP 1?

  • 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
  • No primer required for most construction materials lowering installation costs
  • Weather-resistant for long-lasting weathertight seals
  • Compatible with non-rigid coatings and can be painted
  • Superior holding power for long-lasting roof tile installation

Buy our masonry sealants in bulk today and save on your order. Have questions about our masonry supplies or equipment? Contact us today for complete assistance!