Promain have specified and supplied 3M Scotchkote LS 4000 to protect the timber to Class ‘O’ spread of flame at the New Weighing Room at the £5m Redevelopment at York Racecourse.
The proposed plans for the The Grade II* Listed building are for a £5 million development to be constructed at the northern end of the course, this development will enhance the front of the John Carr Stand which is an outstanding Georgian building opened in 1754 making it more visible to race goes by removing the existing canopies. The new Weighing Room will include a medical room, physiotherapy room, female riders’ changing room and jockeys’ lounge and all wooden paneling will be protected with 3M Scotchkote LS 4000.
The 3M Scotchkote LS4000 Intumescent Paint System is being used to protect the timber on the wood panelling and the ceilings providing class O spread of flame.
E Wood formulated a clear intumescent varnish coating based on a 2 pack water based base coat Thortex Pyro-Tech, and a single pack clear solvent sealer over the top Thortex Pyro-Tech CS. Both the base coat and sealer should be used in conjunction with each other being applied to dry internal timber wood paneling and construction timber. Now known as Scotchkote Intumescent Coating LS4000 and 3M Clear Intumescent Sealer LS4000 CL this fire resistant system is specified by London Underground for application to timber surfaces including doors and other areas underground, these areas are know as Section 12.
London Underground since the Kings Cross fire have only used paints that have passed a low smoke emission test. In 1987 31 people died when a fire in a machine room under a wooden escalator quickly spread during the late evening rush hour.
During the fire hundreds of commuters were still underground as the escalators burst into flames trapping them in the underground station. It took more than 150 fire fighters to bring the blaze under control and a fire brigade spokesman, Brian Clark, said the scene in the concourse at the top of the burnt escalator was one of total devastation.
Following this terrible disaster London Underground have looked at all surfaces and put stringent criteria into place regarding smoke emissions to all coatings applied above and below ground and the 3M Scotchkote system is the only clear varnish that meets this standard.