Flexible Intumescent Strips For Fire Doors Eco With High Thermal Insulation

Flexible Intumescent Fire Seal for Doors and Windows – Thermal Expansion Fire Stop Strip

Product Overview This flexible intumescent strip offers passive fire protection by expanding under high heat to seal air gaps and joints. It is widely used in fire door assemblies and window frames to contain smoke and fire.

Features Flexible and bendable for irregular gaps High thermal insulation rating Non-toxic and halogen-free Fast expansion and reliable sealing

Technical Specifications Material: Intumescent Graphite Compound Activation Temp: ~180°C Expansion Factor: Up to 25x Sizes: 10x2mm, 15x2mm, 20x4mm (custom available) Adhesive: Strong PSA backing Color: Grey, Red, Brown.

Applications Wooden and metal door perimeters Fire-resistant glass partitions Ventilation grilles Elevator shaft doors.

Customization Options OEM size and length options Printed product codes or arrows Double-sided adhesive available Cut-to-length strips or rolls.

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.