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Therm-A-Plate Letterbox liner

From £6.50 Each Kit (Prices shown exclude VAT)
Brand: Intumescent Seals
Product Code:
Availability:
Select Required Size:
300X120X45mm
300x120x54mm
Available in the below colours:
Black
Other Quantities available and Bulk Offers:
Each Kit £6.50
Each Kit £7.40
Description
Specification
Additional Information
Product Downloads

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.

THERM-A-PLATE intumescent letter plate kits are produced in five standard aperture sizes to suit both 30 and 60 minute fire doors. We stock the 300x120mm size to suit both FD30 & FD 60 applications.

The performance of the THERM-A- PLATE kits has been proven in fire tests carried out to BS476 Part 22 (1987). Test results (time to failure in minutes) are shown for 45mm and 54mm doors with different aperture sizes. Test reports DFR 9807141, DFR 9804271, DFR 9810292 and DFR 9809151 are available on request.

It is increasingly common to find that entrance doors to flats and apartments in tower blocks and houses in multiple occupation, are fire resisting to 30 or 60 minutes rating. As these doors are effectively external doors, many have apertures cut in them to serve as letter boxes, but this

unfortunately compromises the door leaves integrity. The kit is supplied in pieces backed with self-adhesive tape and these are bonded to the inside sides of the aperture.

The faces of the aperture must be clean, dry and dust free for optimum adhesion. Kits may be trimmed to suit the aperture size as required. It is recommended that metal letter plates are used to comply with the recommendations in BS8214 (1990) and the largest aperture requires a metal tidy but does not have end pieces of intumescent

Technical PDFs
Therm-A-Plate.pdf
Date Added: 17/08/2017
File Type: pdf
Test Evidence
Therm-A-plate Test A.pdf
Date Added: 17/08/2017
File Type: pdf
Description

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

THERM-A-PLATE intumescent letter plate kits are produced in five standard aperture sizes to suit both 30 and 60 minute fire doors. We stock the 300x120mm size to suit both FD30 & FD 60 applications.

The performance of the THERM-A- PLATE kits has been proven in fire tests carried out to BS476 Part 22 (1987). Test results (time to failure in minutes) are shown for 45mm and 54mm doors with different aperture sizes. Test reports DFR 9807141, DFR 9804271, DFR 9810292 and DFR 9809151 are available on request.

Additional Information

It is increasingly common to find that entrance doors to flats and apartments in tower blocks and houses in multiple occupation, are fire resisting to 30 or 60 minutes rating. As these doors are effectively external doors, many have apertures cut in them to serve as letter boxes, but this

unfortunately compromises the door leaves integrity. The kit is supplied in pieces backed with self-adhesive tape and these are bonded to the inside sides of the aperture.

The faces of the aperture must be clean, dry and dust free for optimum adhesion. Kits may be trimmed to suit the aperture size as required. It is recommended that metal letter plates are used to comply with the recommendations in BS8214 (1990) and the largest aperture requires a metal tidy but does not have end pieces of intumescent

Product Downloads
Therm-A-Plate.pdf
Date Added: 17/08/2017
File Type: pdf
Therm-A-plate Test A.pdf
Date Added: 17/08/2017
File Type: pdf

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