MasterSeal NP1 is a one-component, gun-grade elastomeric polyurethane sealant designed for high-performance sealing in construction, masonry, and concrete applications. This non-priming formula typically requires no primer to bond to many materials, including concrete and masonry. The sealant provides excellent flexibility and adhesion while resisting water and weather exposure, making it suitable for outdoor construction projects.
The smooth extrusion formula allows for clean, professional joints with minimal tooling required. MasterSeal NP1 has a wide temperature application range, making it suitable for all climates. Its one-component design eliminates the labor costs and complexity of two-part systems, while requiring no mixing helps reduce installation complexity.
Features and Benefits
- One-Component Formula: Requires no mixing, reducing labor costs and simplifying the application process.
- Non-Priming: Typically requires no primer for most construction materials including concrete and masonry, lowering installation time and costs.
- Excellent Flexibility and Adhesion: Elastomeric polyurethane construction provides superior bond strength and flexibility for dynamic joints and movement.
- Weather and Water Resistant: Maintains performance in outdoor environments and resists moisture damage over time.
- Smooth Extrusion: Easy to gun and tool for speedy application and neat joints.
- Fire Tested: UL listed; passes 4-hour, 4-inch fire and hose stream test when used with Ultra Block or mineral wool.
Specifications
- Brand: MasterSeal
- Model: NP1BLK12
- Size: 10.1 oz. tube
- Color: Black
- Type: One-component, gun-grade elastomeric polyurethane sealant
- Approximate Coverage: 26 linear feet per tube
- Cure Time: Skins overnight; full cure within one week
- Application: Non-priming for most construction materials
- USDA Compliant: For use in meat and poultry areas
How to Use
- Load the 10.1 oz. tube into a standard caulking gun for controlled application.
- Tool or smooth the sealant as needed while wet for a clean finish.
WARNING: This product can expose you to chemicals including toluene disocyanate which is known to the State of California to cause cancer, and toluene, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
