Lacquer based, combined filler and primer for final finishing. Contains finer particles than Mr Surfacer 1200. Can be hand brushed or airbrushed. For airbrushing, use about 3 parts Mr Color Thinner to 1 part Mr Surfacer and apply at about 12 psi for excellent coverage. Has a super fine satin finish. Can be thinned with Mr. Color Thinner and Mr. Color Levelling Thinner.