Intumescent Strips
Fire Rated Glazing Seals
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Fire & Smoke Letterplate

Fire, Smoke & Acoustic Letterplate System –  an ABS framed, telescopic letterbox, with metal flaps and fitted with a high performance intumescent liner.
In the event of fire the intumescent liner expands rapidly and seals off the letterbox opening, preventing the spread of fire and smoke whilst maintaining the integrity of the fire door assembly.
For use in 30 minute fire rated doors, will adjust to suit doors from 40 to 80mm thick, particularly suitable for multiple occupancy residential buildings.
Fire tested to BS476 Part 22:1987 (30 minute rated)
Smoke tested to BS476 Part 31.1:1983
Acoustic tested to BS EN ISO 140-3:1995  (Achieved 32Rw dB)
Security tested to BS EN13724 Clause 6.6.5

Tested to EN 1634-1, 30 minutes
Size: 10” - overall size 272mm x 70mm     aperture size 241mm x 57mm
Size: 12” - overall size 306mm x 70mm     aperture size 274mm x 57mm

Finishes - All letter plates supplied with Black ABS frame, except SS which has a silver frame.
Satin Anodised Aluminium (SAA)
Polished Gold (Contract Brass Effect)
Polished Silver (Contract Chrome Effect)
Stainless Steel (Silver frame)


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