FIRE ONLYNINTUMESCENT DOOR PACK (5 X 1.05M) - 4MM | 15 X 4MM | BROWN | -

 Supplies enough intumescent strip for a ½ hour fire door.

 High performance intumescent core contains intercalated graphite which in the event of a fire expands multi-directionally up to 10-15 times its original size sealing the gap and holding the fire door in place.