The Safety Letterbox Company in association with the Fire Research Laboratory worked together to create a range of 1 hour fire rated (integrity only) mailboxes.
Particularly suitable when mailboxes can only be positioned within a designated fire escape route or banked in a post room which must be fire rated.
The products in this section were required to satisfy the integrity criteria given in BS476 Part 22 1987 Clause 8 for a period of 60 minutes.
In addition to the above, the mailboxes can be further enhanced by applying a finish which would conform to London Underground surface spread of flame requirement BS476 Part 6 & 7
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