Shenzhen Xunzhi Building Material Industry Co., Ltd.
0 gap sealing rubber strip canbe used for 15 years
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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.