Acoustic and Fire Protection Gaskets for Dry Lining Boxes (Product 30)
Acoustic and fire gaskets are designed with intumescent for dry lining boxes. Electrical protection gaskets for BESA or universal boxes, where conduits pass through fire-rated ceilings and walls. BESA or universal boxes must have intumescent gaskets fitted to stop fire penetrating. Furthermore, metal socket boxes must have gaskets installed where they’re back-to-back, this also includes if cables pass through walls. Our extensive range of expanding intumescent gaskets and linings are ideal for a wide range of standard electrical boxes.
This streamlined product, with its double-action design, will help to save lives and combat both airborne and impact sound. It is extremely flexible and easily fitted in seconds for all types of dry lining switches and socket boxes, saving valuable installation time. Provides up to 4 hours of fire protection for electrical sockets fitted into dry lining walls.
Available for multiple sizes to fit into varying socket boxes housing electrical wires. A non-acoustic version of gaskets for dry lining boxes is also available.
Our electrical and plumbing products meet IET wiring regulations as well as Document B & E of Building Regulations tested to European and British Standards. Browse our full range of electrical and plumbing products.
ADVANTAGES
Solutions for both plastic and metal boxes, providing up to 4 hours protection.
Compatible with single or double socket or switch boxes, BESA boxes, universal conduit boxes and ceiling roses
Complies with IEE Wiring Regulations, bringing standard boxes in line with Document B
ORDER REFERENCES / SIZES
FIRE AND SOUND TRAP FOR ELECTRICAL BOXES
The Envirograf® Product 30 range has been extended with a range of Fire and Sound Traps (FST acoustic and fire protection sleeves for electrical boxes). These have integrated intumescent material for use in timber-framed houses, etc. The FST products are easy to install and they will fit all cavity depths, for single/double, shallow/deep switch/socket boxes.
REF DESCRIPTION
EXTERNAL
FST/EXT/S/S&D Fire & Sound Trap External to fit Single Shallow & Deep Boxes*
FST/EXT/D/S&D Fire & Sound Trap External to fit Double Shallow & Deep Boxes*
* The two products above are supplied with fixing pins. No pins are necessary for the internal products shown below.
INTERNAL
FST/INT/S/S Fire & Sound Trap Internal to fit Single Shallow Boxes
FST/INT/D/S Fire & Sound Trap Internal to fit Double Shallow Boxes
FST/INT/S/D Fire & Sound Trap Internal to fit Single Deep Boxes
FST/INT/D/D Fire & Sound Trap Internal to fit Double Deep Boxes
FIRE TEST PERFORMANCE
Gaskets tested to BS476 Parts 20 & 22, achieving up to 4 hours fire protection in metal boxes.
Gaskets tested to EN1365-2 (1999), NEN6069 (2005), and EN1364-1 (1999), achieving up to 84 minutes protection in plastic boxes.
Acoustic fire and sound trap linings tested to BS476 Part 22 (1987), achieving 4 hours protection in solid walls and 71 minutes in cavity walls.
Acoustic criteria tested to BS476, Parts 20/22, EN 1364-1 (1999) & EN 1365-2 (1999).
- Application Instruction
- Downloads
- APPLICATION INSTRUCTIONS Intumescent gaskets are essential in metal or plastic boxes where cables pass back through a wall. Gaskets must be fitted to all dry lining boxes in partition walls. Without these gaskets fire can spread into the partition within 4-5 minutes. Where cables run through back to back boxes in brick or block walls, flames can pass through within 6 minutes, resulting in a wall or partition only 6 minutes of fire integrity. Gaskets for use inside metal or plastic boxes are made to the size of the box and come with self-adhesive fixing on the back. Once the backing paper has been peeled off the fixing strip, the gasket can be adhered to the inside of the box. Holes can be cut into the gasket with a sharp knife to receive cables, or the gasket can be cut to fit the back of the box if cables are already fitted. Dry lining boxes in walls have two pads per box, made to size and adhered top and bottom. Plasterboard ceiling rose boxes can be protected by means of an intumescent cover which folds up and is passed through the hole in the ceiling. A hole is then cut in the cover to receive the cables, which are then pulled through the cover, box and ceiling before connecting the ceiling rose. Ceiling rose gaskets to fit over the ceiling rose or hook plate should be fitted where more than two cables pass through the ceiling. A hole is made in the gasket through which the cables are passed. The backing paper of the self adhesive fixing strip is then peeled off and the gasket is adhered to the ceiling. The pendant or light fitting can then be fitted. **WARNING** Gaskets are made to fit within socket boxes – do not cut or trim in half.