MasterSeal NP 1 – 20 case
One-component, elastomeric, gun-grade polyurethane sealant
Formerly: Sonolastic NP 1
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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.
Interior and exterior
Above and below grade
Immersed in water
Aluminum and wood window frames
Store front 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 weather tight seals
Compatible with non-rigid coatings and can be painted
Superior holding power for long-lasting roof tile installation
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