Shenzhen Xunzhi Building Material Industry Co., Ltd.
0 gap sealing rubber strip canbe used for 15 years
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Fire-Resistant Expansion Joint Rubber Strip – Flame Retardant Sealing for Buildings and Tunnels
This expansion joint rubber strip is made from flame-retardant EPDM or silicone, offering safety-focused joint sealing for high-risk environments like tunnels and utility facilities.
Features
Self-extinguishing material
Low smoke and toxic gas emission
Maintains sealing under high temperatures
Weather and ozone resistant
Technical Specifications
Material: Fire-rated EPDM/Silicone
Fire Rating: UL94 V-0 or EN 13501
Thickness: 6–20 mm
Hardness: Shore A 55–75
Operating Temp: -40°C to +180°C
Smoke Index: ≤ 30%
Applications
Subway and railway tunnels
Underground utility channels
Fire-resistance wall joints
Chemical and battery rooms
Customization Options
Custom flame-retardant compounds
Integrated fire barrier foil
Joint width and thickness customization
Laser-engraved logos optional