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Intumescent Fire Protection Gaskets

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An intumescent gasket fitting into BESA boxes, universal conduit boxes and plug or switch boxes, designed to comply with British Standards and IEE Regulations.

Envirograf Product 30.

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Product Info

Where socket outlets or switches are back to back in fire walls with cable or conduit passing through walls, gaskets must be fitted inside these boxes to stop the passage of fire.

In addition all boxes in plasterboard partitions need to have gaskets fitted.

Where steel conduits pass through firewalls or floors, it is essential to terminate each side of the wall or floor slab with a BESA box or universal conduit box. The intumescent gaskets fit into the back of the box, stopping the passage of fire and smoke from one compartment to the other

Fire Performance

Tested to BS476 Part 20 and 22 (1987), achieving 240 minutes protection and 70 minutes integrity and insulation in dry lining boxes.

Tested at VNE to European Standard EN1365-2 (1999), NEN6069 (2005) and EN1364-1 (1999) achieving 84 minutes.

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