EN/F1 is a powerful fire-resistant intumescent sealant filler in dark grey. Ideal solution to seal gaps around penetrations in both hollow and solid walls, including floors and ceilings providing an effective and economical sealing solution with a wide range of applications. Furthermore, when cured, the sealant is not affected by water. 

Tested for 2 hours fire protection and insulation in plasterboard hollow walls and brick, block walls.

– Suitable for use with aluminium, copper, plastic and steel pipes up to 50mm diameter

– Can also be used for cables (including armoured cables, MICC and flexible cable types) up to 32mm diameter

– EN/F1 sealant types is made of water-based materials which become water-resistant once cured