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• Features & Benefits
• Availability
• Installation
• Testing

Features & Benefits

• Developed to give maximum fatigue resistance ensuring a long and satisfactory life when installed into a 3 to 4 mm gap between the door edge and the frame
• Narrower gaps than this will shorten the life of the smoke seal. Larger gaps will not be a problem provided that the seal bridges the gap
• The seal is fitted into a PVC holder containing THERM-A-FLEX graphite for outstanding fire performance and immune from degradation by carbon dioxide in the atmosphere

Availability

Installation

Therm-A-Blade intumescent fire and ambient temperature smoke seals are available in PVC holders which are 4 mm nominal (actual 4.3 mm). For most latched single-leaf, single swing 30 minute (FD30S) timber fire resisting door assemblies, a single 10 mm x 4 mm or 15 mm x 4 mm strip down each jamb and across the head will usually meet these requirements.

Most latched single-leaf, single swing 60 minute (FD60S) timber fire resisting door assemblies will satisfy the requirements of BS476 : parts 20 and 22 (1987) test procedures when fitted with a single 20 mm x 4 mm strip across the head and down both jambs. Tests carried out to BS EN 1634-1 often require more specific solutions e.g. twin 15 mm x 4 mm seals to achieve a 60 minute rating.

The intumescent foam produced by Therm-A-Blade is designed to withstand high temperatures - so it is well suited to applications incorporating timber doors with steel frames where conventional intumescent foam compounds break down.

Testing

THERM-A-BLADE meets the requirements for fire and smoke performance of BS476 : parts 20, 22 & 31.1 . It has also passed the more exacting standards required by Certifire.

It is currently being evaluated to the requirements of BS EN 1634-1.

Copies of test certificates and other evidence are available on request - contact Rawlins Technical on 0113 2455450 (option 2) or send a message to [email protected].

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.