About

Firespray International Ltd, part of the Hotchkiss Group is the manufacturer of the world’s leading fire rated duct system – Flamebar BW11. Since its conception, the Flamebar BW11 system has been successfully applied on millions of square meters of smoke extract, pressurisation and kitchen extract ductwork systems in the global arena.

Our reputation for innovative technology and service reliability is known industry wide and our fire resistant products and services safeguard many of the world’s most prestigious buildings and installations.

With manufacturing facilities based in the United Kingdom and in Malaysia, Firespray International is well positioned to serve a demanding and increasingly challenging marketplace.

With an ever expanding list of international licensees and applicators trained and supported by Firespray International, we  are well equipped to provide confidence to consultants, main contractors and mechanical contractors, and to ensure that the Flamebar BW11 system meets project specifications and scheduling at all times.

Projects from 5M2 to 100,000M2 are treated with the same level of support to ensure compliance with local codes and regulations regardless of their location in the world. 

Our pioneering fire rated ductwork systems result from expertise in two technologies – ductwork manufactured to our tested standard and our fire resistant coating – creating an unrivaled system of fire rated ductwork.

We have a continuous research and development programme to ensure that our product meets the building specifiers’ most exacting requirements, by constantly providing new solutions to the industry. Our products are exhaustively tested to meet, and often exceed, all statutory British, American and ISO standards.

As the leader in our field, we work closely with our clients, not only to provide them with specialist products and capability to meet any fire resistant ductwork requirement, but also ensuring that our extensive technical support is always available at every stage of their project

Flamebar BW11 fire rated ductwork is fabricated from galvanised sheet steel to an enhanced standard. It is then degreased and sprayed with a coating using a specially formulated water based compound. The coating contains selected mineral filters in a low permeability elastomeric binder to a thickness of  0.7mm minimum to give a finished product which has been successfully tested for international use under Cellulosic Fire Conditions for 4 hours duration.

Ductwork is always produced in flanged sections and is assembled on site utilising tested fireproof gaskets.

The completed system has been tested to British Standard 476 Part 24 (1987) and ISO 6944 (1985) up to temperatures of 1133 degrees centigrade, thereby facilitating complete design freedom should a fire engineering approach be adopted.