Envirograf Intumescent Coated Slabs

Availability: In Stock

£47.00 inc. VAT: £56.40

A high-density rock-fibre slab with an intumescent coating on both main faces. These slabs are suitable for use as a permanent fire barrier in non-load bearing walls, floors and ceilings, or around services. Fibrous intumescent slabs that can be cut to allow services to pass through.

Size – 1200 x 600 x 60mm thick


Due to its high density, it can be used for large openings in floors, walls and ceilings.

Offers effective acoustic protection by impeding sound transfer through the centre of the structure and across its surface.

Ideal for use under raised flooring as a firebreak, providing 1-4 hours fire protection.

Application Instructions:

Where the slab is in a wall situation, just cut the slab to fit into the opening adhering with the adhesive supplied, ensuring that Envirograf Wraps are fitted around any PVC, copper or steel pipes and PVC electrical trunking.

For steel electrical trunking fit pads inside where passing through the slab.

For cable trays, then use Envirograf Product 29 cable tray pillows.

For floor openings 1m² without support. For hole sizes over 1m², firstly fit chicken wire 1½” diameter, support around the perimeter with Envirograf FB/C1 Metal

Supports and wire mesh to services passing through the opening.

For large openings Product 4, ref: SUP Metal Supports can be used.

Then around any plastic, steel or copper the fit product 7, around electrical trunking or steel trunking, fit Envirograf Pads and Cable Tray Pillows over cable trays or fit Product 1 Envirograf

Pillows around cables that are having to be regularly changed.

IS60 slab – this is a slightly smaller slab in size but very high density. Ideally suited to large openings or complete walls, where ladders may need to be leant against or areas where the filled area needs to be extra strong.

Again, all services passing through the slab must have wraps, etc., around the pipes and services.

The coated slab is ideal for under computer room raised floors as a firebreak.


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