Description

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.

• Size: 10.1 ounce
• Color: Black
• 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.

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
• Store front assemblies.

WARNING: This product can expose you to chemicals including TOLUENE DIISOCYANATE 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.