I used to use perfect paint when they were around, now I use KlassCoat for everything. Klasscoat primer fills and sands beautifully, no need to screw around with the other stuff anymore. I fill the weave in my glass cloth with a small 3 inch roller and mix Klasscoat primer in a paper plate. Make sure Klasscoat is underneath everything if you want to use another brands and types of paint. Once Klasscoat is cured, nothing touches it! Not even acetone! This makes is easy to apply colors, lettering, etc., with other kinds of paint. If they don't come out right, simply wipe it off with an acetone, lacquer thinner, etc, the Klasscoat base coat is untouched! Amazing stuff!