Product description

Burnt out electrical socket boxes can act as a catalyst for fire passage and should be protected in all construction. ROCKWOOL Intumescent Putty Pads provide fire resistance for pre-existing socket boxes and openings in plasterboard walls. Using the latest technology, they are noise insulative too.


ROCKWOOL Intumescent Putty Pads are manufactured from a non-setting, flexible silicone-based intumescent polymer that possesses a low smoke emission. Should there be a fire, these Intumescent Putty Pads will activate at a temperature of 200°C where the pad will expand to fill the space left by burnt out socket boxes, creating a seal that will prevent the passage of fire and smoke.



ROCKWOOL Putty Pads provide an efficient and clean way to fulfil the 2006 edition of the Building Regulations approved document Part E and B, sections 7 and 7.12 b. Additionally, this product fully complies with BS476: Part 20 (1987) regulations.

IFC Certified


  • Maximum protection – ROCKWOOL Intumescent Putty Pads offer 2 hours of fire resistance, creating a lasting protection against fire and smoke passage.
  • Available in small quantities - manufactured in pre-cut shapes and can be bought in small quantities, which ensures a simple and cost-effective installation process.
  • Long shelf service- these Intumescent Putty Pads have a long service life and require no maintenance.
  • Dry system – this product works effectively in conjunction with construction that does not possess a sprinkler system as a fire preventative.