Polyurethane rigid foam from Australian Urethane & Styrene Australian Urethane & Styrene Polyurethane is a closed cell rigid foam. Australian Urethane & Styrene supplies a variety of urethanes ranging from 35kg/m3 to 200kg/m3 in density. All Australian Urethane & Styrene urethane contains a special flame retardant additive. Features Low thermal conductivity (k) value Can operate at medium-high service temperatures Good compressive strength Resistant to chemicals and solvents Resistant to rot Provides no nutrition for pests Flame retardant additive Buoyancy properties Applications Carving for fiberglass moulds Marine buoyancy Insulation where load bearing is required (coolroom floors) Where compressive strength not achievable by styrene is required Substitute for wood that will not warp or rot