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Summary: Mix etch primer properly when giving a car a custom paint job, which will ultimately offer protection by sealing the steel; learn how from our expert custom-car mechanic in this free auto-restoration video.
Doug Jenkins runs Doug Jenkins Custom Hot Rods in St. Louis, where he restores classic cars and creates mild to wild custom street rods. He races a 1972 Corvette in the SCCA...read more
"Hi I'm Doug. I work with twenty great guys in St. Louis at Doug Jenkins Custom Hot Rods, and we're going to do some work for you today on Expert Village. Okay now we're going to get ready and mix some etch primer. Tony's putting on the clean suit. And etch primer is maybe the most important thing you can put on the car for its protection. It's a two part system and it seals up the steel and satisfies the steel's desire on a molecular level to rust. Steel is unstable, it wants to grab oxygen out of the air and that's what makes it rust. This stuff here, this yellow goop he's mixing up, you spray that on there and that settles the steel down. It satisfied its desire; it's electronically, I guess, unstable. And it's grabbing oxygen out of the air or water. It grabs this stuff better. And we don't mix a whole lot of it; you put it on really thin. Like if you can see it, you've put too much on. And if you put too much on the paint won't, it'll bleed right through the paint and ruin the paint. We've got a few places where there's sand-trough?s on the impala. And he just wants to spot them with the etch primer, so that we have good rust-proofing on the car."
eHow Article: How to Mix Primer to Paint a Car