High-Performance Fire Expansion Strip – Intumescent Tape for HVAC and Electrical Enclosures

Product Overview Designed for industrial-grade protection, this high-performance expanding fire seal tape can be used in ducts, electrical boxes, and control panels. It expands to block fire and gas migration.

Features Industrial-grade fire barrier Long shelf life and thermal stability Rapid expansion upon flame exposure Flexible mounting options.

Technical Specifications Material: Graphite-Modified Intumescent Tape Expansion Temp: 180–200°C Thickness: 2–6mm Width: 10–50mm (custom) Adhesion: High-tack one-side adhesive Temperature Resistance: Up to 300°C .

Applications Cable trays and trunking Air duct penetrations Electrical cabinets Industrial wall partitions .

Customization Options Available in cut strips or continuous rolls Adhesive-free version for mechanical fastening Color-coded backing liner Private label packaging .

Shenzhen Xunzhi Building Materials Industrial Co., Ltd. is an integrated enterprise specializing in design, production, and sales, with many years of experience in manufacturing and technical product development. The company has two subsidiaries: Hong Kong Ruisong Technology Co., Ltd. and Sanya Ruisong Technology Co., Ltd. It is a professional manufacturer of door and window seals, curtain wall seals, and vehicle door sealing strips, providing one-stop rubber sealing solutions to global customers for many years.

We specialize in the production and processing of various sealing and molding products, including PVC (Polyvinyl Chloride), EPDM (Ethylene Propylene Diene Monomer), high-grade thermoplastic rubber (Santoprene), silicone rubber, dual-hardness sealing strips, rigid decorative strips, EVA single- and double-sided adhesive products for doors, windows, and curtain walls, as well as molded parts and plastic-rubber injection components.

The company is equipped with a strict quality assurance system, comprehensive testing procedures, and excellent after-sales service. Our products are highly recognized and praised by industry professionals, and are exported to Europe, America, Southeast Asia, and Hong Kong and Macao regions.