Therm-A-Plate Letterbox liner
by Firewise Supplies
A THERM-A-PLATE kit comprises of three pieces of THERM-A-FLEX graphite based intumescent material. This material is renowned for its longevity and resistance to degradation by atmospheric influences. The intumescent strips are pre-cut to the correct width for 45mm and 54mm thick door leaves.The intumescent materials are backed with a high bond strength self-adhesive tape for ease of installation. For small letter plate apertures up to 50mm high the thickness of the intumescent material is 4mm and for 85mm or 120mm apertures the thickness is 6mm. For the largest aperture 4no. Steel pins, 30mm long and 1.5mm diameter are required to fix the top and bottom intumescent strips 50mm from the ends of the aperture and 10mm from the face of the door.
Specification Details for Therm-A-Plate Letterbox liner
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Firewise Supplies is consulted before specifying.
Size & Weight
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| Diameter (?) | 1.5 mm | |
| Thickness (?) | 50 mm | |
| Width (?) | 45 mm | |
Materials & Finishes
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| Material (?) | graphite | |
File Downloads for Therm-A-Plate Letterbox liner
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