FP-04+ is an industry leading Firestop Sheet fabricated by bonding proprietary intumescent materials to a metal sheet. FP-04+ securely blocks flame and is designed to seal large penetrations through fire-rated walls and floors. It is also used for shield- ing cable trays, conduit, HVAC and vital process equipment from radiant heat, flame spread and smoke.

FP-04+ Firestop Sheet is thinner than our FP-02, providing a more cost effective solution for double-sided applications such as walls. It is easily re-penetrable and repairable with a common hole saw and can easily be trimmed to different sizes to fit any installation or large openings, working with nearly all construction materials. It is halogen and asbestos free, is very stable and maintenance free.

Meets the intent of LEEDS® VOC environmental air quality requirements.



  • Size: 90 cm x 90 cm
  • Thickness: 2 mm
  • Weight : 5.6 Kgs/Sheet
  • Expansion rate: 10 Times
  • In-Service Temp: -13° F – 176° F (-25° C – 80° C)
  • Packaging: Single sheet
  • Largest Listed opening: up to 74 square feet
  • Performance: 50+ years HOAC tested