Re: Thinning Rustoleum paint to spray w/ gun
Interesting. I've rattle canned a lot of stuff. Amazing how good of a finish you can get on small parts. Especially with some of the bigger flowing tips. Other than getting enough volume and getting big drops as the spray can cools. The underside of my Chevelle was shot with True Value's XO-Rust back in about 1990. At that time TV's parent had their own paint factory and still had the rust inhibitors that RO took out of the paint. It was shot with a gun. I used it because I it was affordable (I was in college), I had the level of gear that could shoot it but not something better, and I could always match it out of rattle cans.
Since then we've had the guy doing $100 paint jobs with Tremcald, the Canadian version of RO, using the "roll and roll method." There was even a Car Craft article about the $99 paint job.
All that said, I've always felt the RO and other stuff was not "real paint" for a car. I've been spending time lately on the iBoats forum and a lot of these guys restoring old boats on a budget are using RO, Valspar or other hardware store paints. They thin it with acetone, mineral spirits, or maybe xylene, maybe a mix. Maybe they add hardener, maybe not. They mix colors by blending pints and quarts. Some shoot it with cheap HF guns, some "roll and tip" some "roll and roll". They get really amazing results. Not show car, but well beyond what you'd expect.
So I think there's merit in some of these techniques, especially for under hood, chassis, or other parts that are easy to over restore with typical automotive two stage paint.
90 Corvette ZR1
TC# 3094 ACES# 7297