yodaforce
+1y
If you are purposely looking for flat or dull "rat rod"style paint on your truck, don't spray straight flat. I mix 3 parts flat with 1 part gloss and shoot it. It comes out "satin". It doesn't burn up like flat paint, and it's very washable and doesn't spot. It's called "suede" in the street rodding community. The gloss gives it a smoother surface without being shiny.