Fire retardant...

Euro Class B fire treatment

For timber substrates that require Euro class B Spread of Flame (equivalent to UK class O)

HR-Prof is water based that is absorbed into the surface of the timber substrate.

	For internal and external use.
	Will not leach.
	Colourless and odourless.
	Non-toxic.
	Solvent free.
	Not harmful to the environment and will not wash out from the substrate once dry.
	Timber treated with HR-Prof does not react with galvanised steel, gun nails or zinc coated screws.
	Critical engineering properties i.e. strength, durability, hygroscopicity and corrosivity are not compromised.
	Timber will not twist, crack or distort, during or after the process.

HR-Prof is water based, possessing high diffusion properties it quickly penetrates the surface of the substrate. It does not require a protective finishing coat and can be left natural or if specified over-coated. Left naturally, timber may darken slightly.

HR-Prof has non-flammable properties, which restrict ignition and the spread of flame. It will not wash out once dry, it is not converted into smoke when exposed to high temperatures, and carbon char is restricted to the immediate area. Materials treated with HR-Prof when exposed to temperatures of up to 1700 o C are subject to charcoal forming, restricting the spread of flame.

HR-Prof for use on cladding, staircases, trusses, joists, walls, log cabins, garages, pool enclosures, saunas and many other projects for Internal or External use.

CERTIFICATION:

• BS EN 13823 & BS EN 11925-2 SBI Euro class B-s1-d0. (Equivalent to UK Class O BS 476: Part 6 & BS 476: Part 7 )

• NT 053 & NT 054 Accelerated weathering of Fire-Retardant treated wood for fire testing.

• Euro-class C (Equivalent to UK Class 1 & 2) for plywood.

Building Regulations: Euro class certifications are formally incorporated into Approved

Document B and regulators in the UK are legally bound to accept them in lieu of national test methods (which are also still permitted). Follow the link below to the government web site:

http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADB_2000.pdf pages 59 & 60