Cretecote Grip Addictive is used on smooth and potentially slippery surfaces, it is to be used after the first coat is applied (this coat should be thinned down with Solvent to ensure proper adhesion), use the Cretecote Grip Additive in the second coat (this coat should NOT be thinned down). 400G per 20L of tinted sealer will give you a P2 anti slip rating and 800G per 20L of tinted sealer will give you a P3 anti slip rating.