Application: Fire resisting doorset
Fire Resistance Period: 30 to 60 minutes
Insulation/integrity: Integrity
Approval Type: Certifire CF355

Pyroplex® Intumescent Strip provides a basic intumescent seal for fire rated metal and timber door leaves and frames. It is also ideal for general gap filling in buildings eg. suspended floors, soffits and ducting. It can be fitted under door hinges, locks and closers. Pyroplex® Intumescent Strips are ideal for new build and retro-fit applications.

Pyroplex® Intumescent Strip is supplied in a continuous coil to minimise wastage and is quick and easy to fit as no special tools are required.

Testing & Certification

Approval Type

Certifire TS35 Certificate No. CF355

  • Supplied with a high grade self-adhesive backing for ease of application and installation.
  • Supplied on continuous reels for dispensing applications.
  • Identification on each product ensures full traceability.
  • Pyroplex® intumescent material is high-pressure and multi-directional.
  • Pyroplex® intumescent material is totally unaffected by water, robust, ‘non-flaking’ and difficult to tear.
  • Pyroplex® intumescent material is black in colour.

Pyroplex® Intumescent Strip has been specifically designed for use in the following applications:

  • Surface mounted applications.
  • For use single and double action leaf doors.
  • Insulated and non-insulated steel doors and frame.
  • New build and retro-fit applications.

Intumescent Strip - No Adhesive

Intumescent Strip with Adhesive

Profile size [mm]Strip – no adhesiveStrip with self-adhesiveIndicative fire resistanceMetres per coil
10 x 281963008630 mins250m
10 x 2.5849230 mins250m
15 x 283663008530 mins200m
15 x 2.5850130 mins200m
20 x 282123007430 mins200m
20 x 2.5892130 mins150m
25 x 2829430 mins100m
25 x 2.5893430 mins100m
28 x 360 mins100m
30 x 284323007560 mins100m
30 x 2.5895860 mins75m
45 x 2824160 mins50m
45 x 43018760 mins25m
45 x 2.5845660 mins50m
50 x 23014660 mins50m

1. Clean the substrate to remove surface oils, failure to remove surface greases may result in a delamination or poor adhesion to the substrate.
2. Remove the self-adhesive backing liner from the Intumescent Strip and apply the product to the substrate.
3. To achieve excellent adhesion seals must be applied to clean, dry surfaces at temperatures between +5°C and +40°C.

The Pyroplex® range of Fire Door Seals have been extensively tested in the UK, Europe and worldwide, to national and international standards. Compliant with the requirements given in Certifire TS35 – Certifire CF355.

Providing the product is installed in accordance with the requirements of the guidance document the product is guaranteed for a period of 10 years.