NP1 Sealant, Propak 20 Oz, GRAY color (1) - MasterSeal NP1 (formerly Sonolastic NP1) One-Part Polyurethane Caulking Sealant, GRAY COLOR, 20-ounce Sausage Pack (Propak). Price/Each. (20/case, order full cases for discounts)
NP1 Sealant, Propak 20 Oz, GRAY color (1)
$13.00 SALE $9.25
(Savings: $3.75)
 Buy 20 or more and pay $8.71 each (save 33.00%) 
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MasterSeal NP1, GRAY COLOR MasterSeal NP1, GRAY Color, in 20 Oz. Sausage Packs (Propak). Price/Each.

Ordering Notes:

  • Shipping leadtime: 1-2 business days.


MasterSeal NP 1 Polyurethane Sealant is a one-component high-performance gun-grade moisture-curing polyurethane sealant designed for a wide range of sealing and caulking applications in active exterior joints.


  • With 800% elongation, 350 psi tensile and +/- 35% joint movement capability, NP-1 handles most every exterior application up to 1-1/2 inch wide.
  • NP-1 requires no mixing and typically bonds to many materials without a primer, including concrete and masonry.
  • NP1 dries with a smooth finish and is paintable.


More Product Information:


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Call us at 1-800-474-7570 or 602-272-8128
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