Metacaulk Firestop Products

Worldwide Leader in Firestop Technology – Our family of UL approved Metacaulk Firestopping Products is specifically designed to fill voids in construction joints and around penetrations in fire-rated walls or floors. Many have intumescent properties and expand when exposed to heat, forming a high-strength insulating char. Metacaulk products contain a combination of biocides that protect the product in both the cured and non-cured state against mold growth. Online Firestop 101 Training