Astro Strip Intumescent Fire Seals 10mm x 4mm x 2100mm White

An intumescent graphite based fire seal contained within a PVC sleeve. Fits into a rebate in either the door frame or door leaf. In the event of a fire the seal expands (intumesces) to several times its original volume to seal the gap around the door, providing a safe and effective barrier against the passage of fire, smoke and hot gases. Please Note: Seals of 10 and 15mm are suitable to be used with CERTIFIRE approved FD30 SL, SAL, or unlatched timber doors of max leaf size 2040 x 926mm and a minimum thickness of 42mm. Each fire door will have its own test evidence from the door manufacturer. It is the responsibility of the purchaser to ensure that the seals are fully compliant with the relevant test evidence. To seal the bottom of the door we suggest using our Surface Mounted Acoustic Perimeter Seals or Rebate Fit Acoustic Perimeter Seals.