Our intumescent rubber seal strip is engineered to provide reliable fire protection by expanding under extreme heat. Once activated, it forms a dense insulating barrier that seals gaps and delays the spread of fire and smoke.
Key Features
✔ Rapid expansion when exposed to fire
✔ Excellent smoke and flame sealing performance
✔ Durable and weather-resistant materials
✔ Suitable for doors, windows, cabinets, and partitions
✔ Easy installation with adhesive or groove mounting
✔ Custom profiles, dimensions, and colors available
Applications
Fire doors, steel doors, wooden doors, fire-rated windows, electrical cabinets, industrial enclosures, and building partition systems.
E-mail:info@rubbersealpro.com
WhatsApp:+86 188 5323 2260
Intumescent rubber seal strips are an essential component in modern passive fire protection systems. Under normal operating conditions, the seal functions as a conventional gasket, providing dustproof, sound insulation, and sealing performance. When exposed to temperatures generated by fire, the intumescent material activates and expands multiple times its original volume, effectively sealing openings and preventing the passage of flames, smoke, and toxic gases. Manufactured using premium fire-resistant compounds, these seals maintain excellent flexibility, aging resistance, and environmental durability. They are suitable for installation in fire-rated doors, fire-resistant windows, access panels, electrical cabinets, and various industrial applications where enhanced fire protection is required. Expands automatically under high temperatures Helps delay the spread of fire and smoke Excellent thermal insulation properties Resistant to aging, moisture, and weather exposure Provides additional dust and sound sealing during daily use Flexible design for easy installation Available in various profiles and dimensions Custom manufacturing services supported Fire-rated wooden doors Fire-rated steel doors Fire-resistant windows Curtain wall systems Electrical control cabinets Communication equipment enclosures Industrial access panels Public buildings and commercial facilities We offer OEM and ODM manufacturing services to meet different project requirements. Customized cross-sections, expansion performance, colors, packaging, and installation methods can be developed according to drawings or samples. Our engineering team can assist in selecting suitable sealing solutions for various fire protection applications. Protect lives and property with reliable intumescent sealing solutions designed for long-term fire safety performance.Fire Resistant Intumescent Rubber Seal Strip
Features and Benefits
Typical Applications
Technical Specifications
Item Specification Product Name Intumescent Rubber Seal Strip Material Intumescent Compound + Rubber Color Black, Red, Grey or Customized Expansion Ratio 5–20 Times (Customized) Operating Temperature -20°C to +80°C Activation Temperature Approximately 180–250°C Installation Method Adhesive Backed / Slot Mounted Hardness 50–70 Shore A Length Customized Profile Customized Application Passive Fire Protection Systems Customization Service
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Intumescent Rubber Seal Strips expand when exposed to high temperatures, helping to block the spread of fire and smoke. Ideal for fire-rated doors, windows, and other passive fire protection applications.
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