Boss®

BOSS® delivers dependable sealants, firestop products, and specialty solutions built to meet the demands of insulation and construction professionals. BOSS® products help contractors tackle critical sealing, fire protection, and building-envelope applications with solutions designed for reliable performance on residential, commercial, and specialty projects.

From everyday sealing to more specialized fire-rated applications, BOSS® offers products contractors can count on throughout the jobsite. The lineup includes Multi-Seal construction sealants for sealing gaps, cracks, joints, and penetrations, along with intumescent firestop sealants designed to help maintain fire-rated assemblies around pipes, cables, ducts, and other penetrations. BOSS® also provides additional sealants, foams, and specialty products that support air sealing, moisture control, and overall building performance. Whether you’re sealing around insulation, addressing penetrations, or completing firestop details, BOSS® provides practical solutions that help contractors finish the job efficiently and confidently.