6 in STI SpecSeal SSC Intumescent Firestop Collars

The SpecSeal® Series SSC Collar is a factory-manufactured device designed to protect plastic pipes penetrating fire-rated walls and floors. Utilizing a heavy gauge galvanized metal collar to house a molded intumescent insert, the SpecSeal® Series SSC Firestop Collar is specifically sized to fit 1 1/2?, 2?, 3?, and 4? (38mm, 51mm, 76mm and 102 mm) trade sized pipes. When exposed to temperatures in excess of 320°F (160°C), the SpecSeal® Series SSC Collar’s molded insert begins to expand (intumesce) rapidly to form a dense, highly insulative char. Its free expansion ranges from 32-64 times original (pre-expanded) volume. Expansion continues up to 1,000°F (538°C).

Features:
Rapid Expansion: Closes off burning pipes quickly
Small Profile: Use it in all the tight spots!
Flexible & Durable: No loose flakes (eye hazards)
Water Resistant: No water soluble or hygroscopic ingredients
Economical: Lower installed cost
High Volume Char: Expands up to 60 times!