Fire & Acoustic Intumescent Back Box Liner

Fire & Acoustic Intumescent Back Box Liner
Product Code: A431
Availability: Out Of Stock
Download Description: For Registered Users Only
Price: Request Quote
This product has a maximum quantity of 20

Fire and Acoustic Intumescent Socket backbox liner

  • Electrical sockets and switches
  • Suitable for single or double sockets
  • Ideal for stud walls
  • Easy DIY installation
  • Easy to cut
  • 2-hour fire rated
  • Highly efficient
  • Part E and Part B compatible


Our intumescent and acoustic lining pad is designed for lining electrical socket boxes in drywall constructions. The mouldable pads fit easily into socket boxes to reduce sound travelling through the walls while providing flexibility when fitting to avoid accidental tearing or puncturing.

Cutting an electrical socket opening in a drywall partition can reduce its acoustic performance and resistance to fire which could therefore result in non-compliance with Part E and Part B Building Regulations.

Our pads are the acoustically tested, intumescent solution, complying with Building Regulations.

Maintains acoustic integrity of the wall, with a rating of up to 69dB Rw

Supplied in full reels of 3.6m x 178mm or individually.

Each strip is 178mm wide.

Each reel is sufficient to cover at least 27 single boxes or 20 double boxes

Installation Internally

  • Use the printed grid to measure the length of pad required - approx. 6 grids for a single box and 8 for a double box.
  • Cut the pad and remove the protective paper from one side.
  • Make a slit for the cable to pass through the pad.
  • Press the pad firmly in place in the socket box ensuring adhesion on all surfaces then mould into the corners.
  • Remove the second protective paper and trim any excess away.


Installation Externally

  • Use the printed grid to measure the length of pad required.
  • Cut with a sharp knife and remove protective paper from one side.
  • Press the pad firmly over the back of the socket box to ensure adhesion on all sides.
  • Remove the second protective layer.


acoustic putty pads installation images

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