UAP Framemaster 12 Inch 40-80mm Letterplate - Fire Rated

The Black 12'' 40-80mm Fire Rated Framemaster letterplate is lined with special intumescent material which expands to 50 times its size, blocking the hole in the cavity and preventing smoke coming through the cavity.The Framemaster letterplate is compliant to BS EN1634-3:2004 smoke leakage regulations. 60 minutes fire rated Uses special heat absorbers to stop hot screws melting the plastic Intumescent activated at 5 degrees lower than most in the market Designed for 40-80mm thick composite and wooden doors 180 degree opening flap means the flap will not snap off when opened too far Manufactured from grade 316 stainless steel