Chem-Calk 915

Bostik Chem Caulk 915 is a premium polyurethane designed for the professional. We sell this product to a huge variety of our customer base. Great for sealing joints, roofing, marble, concrete, windows and many more applications.

Bostik 915 is a one-component, non-sag, polyurethane sealant. Chem-Calk 915 meets ASTM C-920, Type S, Grade NS, Class 25, Use NT; U.S. Federal Specification TT-S-00230C, Type II, Class A. Key applications include perimeter sealing of windows and doors, and masonry applications such as expansion and control joints. Chem-Calk 915 meets the stringent requirements of Miami Dade County Building Code for high velocity hurricane zones, NOA 06-1002.10