Masterseal NP1 Polyurethane Caulk - 10.1 oz Tube

The Masterseal NP1 Polyurethane Caulk in a 10.1 oz tube is an excellent choice for sealing and bonding a variety of surfaces. Known for its superior adhesion, flexibility, and durability, this high-performance sealant is suitable for both indoor and outdoor use. It can bond to materials such as wood, metal, ceramic tile, concrete, masonry, glass, and more. The caulk is also paintable, ensuring a smooth and aesthetically pleasing finish for residential and commercial applications.

Designed to withstand extreme weather conditions, the Masterseal NP1 is resistant to UV rays, temperature fluctuations, moisture, and water. The easy-to-use one-component formula requires no special mixing or tools—just cut the tube tip and apply directly to your project surface. The caulk is easy to gun and tool, ensuring quick application and neat joints.

Key Features:

• Approximate coverage of 26 linear feet
• Excellent flexibility and adhesion
• Meets VOC requirements in all 50 states
• One-component formula requires no mixing, reducing labor costs
• No primer needed for most materials, lowering installation costs
• USDA compliant for use in meat and poultry areas
• Limestone color for seamless integration
• Skins over overnight and fully cures within a week
• UL listed, passing 4-hour, 4-inch fire and hose stream tests when used with Ultra Block or mineral wool
• Wide temperature range, suitable for all climates
• Water- and weather-resistant for long-lasting performance

With a 10.1 oz tube, the Masterseal NP1 Polyurethane Caulk offers a reliable solution for your sealing and bonding needs.