1mm flexifire intumescent DIN lock kit expands when exposed to heat helping seal gaps around the lock case and maintain FD30 and FD60 fire door integrity
Designed for DIN lock installations with 55 to 60mm backset helping protect the lock recess which is a vulnerable area in fire door assemblies
High expansion graphite based intumescent material expands many times its original thickness creating a barrier against fire and heat
Self adhesive backing for simple installation allows the kit to be quickly positioned behind the lock case without additional sealants
Flexible 1mm intumescent sheets wrap around the lock body to provide reliable fire protection around rebated ironmongery
Tested to EN1634-1:2014+A1:2018 and BS476 Part 22:1987 confirming compliance with recognised fire door testing standards