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Intumescent Putty

Product 59


Intumescent putty to seal gaps around metal pipes, cables or trunking

£0.00 ex. Vat


Intumescent Putty

Envirograf® intumescent putty, buff in colour, however, the colour may vary. For filling in small holes and joints up to 50mm wide. Also, the intumescent swells as a result of heat exposure. Thus leading to an increase in volume and decrease in density. Therefore, preventing the spread of fire whilst holding a secure seal.

  • Applied like normal putty.
  • Can paint over, and, stays permanently flexible internally.
  • Additionally, unaffected by the effects of moisture.
  • Ideal around copper pipes and cables, and around electrical trunking.

Subjected to a fire test in accordance with BS746 Part 22 (1987), achieving integrity of 97 minutes.

We provide a varied selection of fireproof adhesives, fillers and sealants compatible with a range of materials. Browse our full range of Adhesives, Fillers and Sealants products online.

Envirograf ® passive fire products carry the hallmark of excellence, reflecting the high standards that prevail in its laboratory, test rig, and manufacturing plant. Envirograf ® passive fire products are subject to rigorous quality control which, at all stages, ensures products remain at the leading edge of fire containment technology. This quality has earned the company and its passive fire products a high reputation, with its operating system being accredited to ISO9001.


– Ideal for filling round metal pipes and cables where they penetrate a range of substrates- If using round glass in steel frame the putty must be painted over to seal surface
– Can be used to face PVE/A Foam (Product 44) to provide additional fire protection

Order References / Sizes

BP                                           310ml

BP                                           1 kg

BP                                           2½ kg

BP                                           5 kg