The product is cut along its length to suit the width of the cable tray or electrical trunking to be firestopped. For example, with 100mm × 50mm electrical trunking the product would be cut into sections of 100mm long.

Multi-Cable Firestop is then laid on top of the cable runs orientating the product so that the 60mm width lies across the depth of the floor slab.

Multi-Cable Firestop is then layered to fill the complete depth of the electric trunking or the cable tray. Ensure electrical trunking lids are fixed back after installing the product.

Make good around cable trays and trunking with either Multi-cable firestop with 50mm thick ablatibe coated batts, mortar or concrete.