Intumescent Fire Seal Brown 10mm x 4mm X 1050mm
Ideal for adding protecting to fire doors, the intumescent fire strip seals fit into a rebate on the fire door or frame. When subject to heat, the seal expands to fill the gaps with a flame-tight seal for 30 minutes.
Self-adhesive Fire Door Seal (Fire Door Pack) Certify Approved CF846 refers, Tested to BS476 part 22,
Once installed our seals can lay dormant for many years only activating when exposed to the rising temperatures and pressures in a fire situation. 
High performance intumescent core contains intercalated graphite which in the event of a fire expands multi-direction ally up to 10-15 times its original size sealing the gap and holding the fire door in place. 
Combined intumescent fire and smoke seal provides additional cold smoke protection sealing off the gap around the door and providing a permanent seal to the passage of smoke. The smoke seal also affords additional thermal and acoustic benefits. Features & Benefits 
• Rapid high-pressure multi-directional expansion. 
• Mineral based: safe to handle, containing no fibrous material or harmful chemicals. 
• Unaffected by moisture, humidity, atmospheric pollution and other common industrial and household chemical substances. 
• Laboratory ageing tests indicate a life expectancy in excess of 100 years. 
• Supplied with a self-adhesive backing for ease of application. 
• Identification on each product ensures full trace ability.