A previous post of mine brings up the question, to prime or not to prime. Myself I have never primed anything that I have painted. Working on mainly 30, 70 and 90 series tractors I have noticed CASE never used primer either, but that does not mean it is the correct thing to do. I know little about painting and different products and have only used CASE supplied enamels. A paint supplier once told me you prime bare metal if there is a chance surface rusting could occur before finish painting or prime with a sandable primer if there are small imperfections you would like to remove. Your thoughts gentlemen? Rod.