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