These rebated intumescent fire seals have a 30 minute fire rating, and are designed to be fitted into existing door leaf or door frame rebates. When in contact with fire, the intumescent seal expands and fills the gap around the edge of the door to help prevent the spread of fire from one room to another. The fire seals have self-adhesive backing for ease of installation. Intumescent non-brush fire door seals Expands when in contact with fire to seal gaps around doors Designed to help prevent the spread of fire 30 minute fire rating Kit contents: Single door kit - 5 strips of 1.05m x 10mm x 4mm (LxWxD) Certifire approved and tested to BS 476 Part 22 Fitted with self-adhesive backing for ease of installation