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Learn the fundamentals of firestop, from containment to control and everything in-between.
- Over 1200 Tested UL Systems
- On-Site UL Testing & Research
- No Poisons or Harmful Chemicals
- Meets Requirements for LEED® Accreditation Points
- Complies with UL 1479 Accelerated Aging Requirements
- Excellent Freeze / Thaw Capabilities
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. Our intumescent firestop products comply with required environmental exposure testing of accelerated aging and high humidity, as per UL 1479 Fire Test of Through-Penetration Firestops. In the event of fire, Metacaulk® sealants will restrict the spread of flames, smoke, hot gases and water. Whatever your application, we provide the most cost effective products to fit your every need.