Envirograf intumescent putty, buff in colour, for filling small holes and joints up to 50mm wide. It is applied like ordinary putty and stays permanently flexible internally.
Heat causes the intumescent to swell, increasing in volume and reducing in density to hold a secure seal against fire spread. It can be painted over, is unaffected by moisture, and suits work around copper pipes, cables and electrical trunking.
- 97 minutes integrity to BS 476 Part 22
- Joints up to 50mm wide
- 310ml, 1kg, 2.5kg and 5kg packs
Technical documents
Envirograf publish the technical data sheet and safety data sheet for this product on their own site, where the current revision is always shown. Envirograf technical documents
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