From their site, "Colors are formulated in lacquer. All of the finishes are pre-thinned and ready-to-spray to insure that the proper thinner is used at the correct mixing ratio. All colors are formulated to be safely used on plastic, resin or metal models over lacquer primer. Our lacquer primers are safe for use on plastic, as well. Lacquer primer is strongly recommended under all paints. This will assure good coverage and adhesion of the color coat. MCW recommends you test any paint products before applying to the actual model."
I air brush using their jar paints. Any good auto primer, can or shot thru an air brush, should work. Of course test on a scrap before spraying the kit.
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