RonaDeck Resin Bonded Scratch Coat is a polyurethane scratch coat for filling defects, unevenness and holes in the matrix of surfaces prior to the application of RonaDeck Resin Bonded Surfacing. RonaDeck Resin Bonded Scratch Coat has excellent adhesion to bituminous, cementitious, timber and metal surfaces. The speed of RonaDeck Resin Bonded Scratch Coat enables it to be overlaid within 1—2 hours at 10°C to 20°C. It is supplied as a two component product.