Sonneborn NP1 Polyurethane Sealant
Sonneborn NP1 Polyurethane Sealant is a one-component high-performance gun-grade moisture-curing polyurethane sealant designed for a wide range of sealing and caulking applications in active exterior joints.
With 800% elongation, 350 psi tensile and +/- 25% joint movement capability, NP-1 handles most every exterior application. NP 1™ requires no mixing and typically bonds to many materials without a primer, including concrete and masonry. Dries with a smooth finish and is paintable.
Gun Grade caulking is much thicker than Self Leveling, and requires troweling to smooth it out. Use Gun Grade for vertical or uneven expansion joints.
VULKEM 45 Coverage Chart
29 oz. Cartridge
DEPTH OF JOINT*
|WIDTH OF JOINT|
|Approximate number of tubes of Vulkem 45 needed per 75 feet of joint.|
|*Depth of joint should be 1/3 the width of joint. (1/4" min. depth)|