LMG- Manual Spray Guns are for use from Low to Medium Pressure with Light to Heavy Fluids. They will cover a range of materials to include Enamels, Latex, and Lacquers etc. These Models require 2-5 C.F.M. at 20 to 43 lbs. Air Pressure depending on Spray Head selected and Material being sprayed. Tip and needle are made of Stainless Steel and can handle water or solvent based materials.