Envirograf Gasket Intumescent For 2 Gang Metal Backbox

Top selling, innovative intumescent fire protection gaskets for metal 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. · · · Lightweight and flexible, fire protection gaskets for metal boxes can accommodate wires and cables by cutting holes where required. · · Trimmed to size to fit most socket boxes, with self-adhesive backing for easy application. · · Intumescent gasket which adheres inside recessed metal boxes housing electrical wires. · · Tested to BS476 Part 22 (1987) and achieved 4 hours in solid walls and 71 minutes in cavity walls · · Mineral Wool Fibre 20-70% by weigh · · Tested to BS476 Part 22 (1987) and achieved 4 hours in solid walls and 71 minutes in cavity walls