Plastic Coating Thinners is used for thinning Rustins Plastic Coating after it has been mixed with hardener. Plastic Coating is a two-part clear cold cure lacquer for use on wood, hardboard, cork and plastic laminates. Extremely good adhesion, resistant to heat, solvents and abrasion. Can be burnished to a mirror like gloss or rubbed down to a smooth, satin finish with steel wool and wax.