Master Builders

MasterSeal NP 1 - Cartridge and Sausage

$7.79 - $15.62
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In Stock
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MasterSeal Np 1
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
Joint movement capability ±35%
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Product Description

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A one-component, high-performance, nonpriming, gun-grade, elastomeric polyurethane sealant. Complies with ASTM C-920, Fed Spec TT-S-00230C, CRD-C-541 and is USDA approved.

(Formerly known as Sonneborn NP1)

Advantages:

  • 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
  • Available in Sausages, reducing jobsite waste, lowering disposal costs
  • No primer required for most construction materials lowering installation costs
  • Weather resistant for long-lasting weathertight seals
  • Wide temperature application range makes MasterSeal NP 1 suitable for all climates
  • Compatible with non-rigid coatings and can be painted
  • Superior holding power for long-lasting roof tile installation
  • UL listed; Passes 4–hour, 4–inch, fire and hose stream test when used with Ultra Block or mineral wool

Technical Data:

  • Shore “A” Hardness: 25-30.
  • Movement Capability: +/- 35%.
  • Skin Time (73°F): 24 hours. 
Movement Capability
+/- 35%
Skin Time (at 73°F)
24 hours
Full Cure
Aprrox. 1 week

Documentation

Contact us for Data and Safety Data Sheet documentation

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