HW01 is a white intumescent paint and HW02 is a clear intumescent varnish that react to fire, giving a 30 or 60 minutes fire rating to timber or wood based substrates. Tested to BS and EN standards. HW01 & HW02 are also tested to Bs-1,d0, surface spread of flame, and K²10. HW01 & HW02 are water based and can be applied by spray, brush or roller. Tested for Indoor Air Emissions.