Product Description

The STI SpecSeal® SSC Firestop Collar is a factory-manufactured intumescent firestop device designed to protect plastic pipes penetrating fire-rated walls and floors. Built with a galvanized steel collar housing a molded intumescent insert, it expands 32× to 64× its original volume at temperatures above 320 °F (160 °C), forming a
dense, insulating char that seals burning penetrants.
Suitable for concrete, masonry, gypsum, and wood floor assemblies, the SSC Collar provides reliable fire containment for a wide variety of plastic pipes.

Key Benefits

• High Expansion – Expands up to 64× to quickly seal off burning pipes.
• Versatile Applications – Protects PVC, CPVC, ABS, HDPE, PP, PVDF, and more.
• UL Certified – Tested to ASTM E814 (UL1479) and CAN/ULC-S115 for up to 3 hours.
• Durable & Safe – Water-resistant with no soluble or hygroscopic ingredients.
• Compact Profile – Easy to install in tight spaces.
• Economical Solution – Lower installed cost compared to traditional systems.

Packaging / Sizes

• SSC150: 1.5” (38 mm), 0.33 lbs, 6/case
• SSC200: 2” (51 mm), 0.38 lbs, 6/case
• SSC300: 3” (76 mm), 0.74 lbs, 6/case
• SSC400: 4” (102 mm), 1.07 lbs, 6/case
• SSC600: 6” (152 mm), 5.04 lbs, 2/case
• Shell Construction: Galvanized steel with molded intumescent insert
• Shelf Life: Unlimited when stored below 120 °F (49 °C)