Etch primer is meant for bare metal. It is supposed to etch the metal a little bit so that the primer will have a rougher surface to stick to. It is not generally meant to do anything for rust.
I have tried some of the Dupli-Color self-etching primer, but it has a lot of filler, so it is not very hard or strong. I tried painting some chassis parts with it, followed by black epoxy enamel, and I found they chipped very easily. BTW, I once bought some Rust-Oleum "Rust Reformer" spray paint, which is supposed to "instantly convert rust to a protected, paintable surface!" I sprayed some on a rusty piece of metal, an later I could scrape it off and find the rust still underneath. It did not seem to behave any different than normal spray paint. I have also seen those milky-looking water-based products that neutralize the rust and turn it black. That's fine, but afterwards you have a latex-based primer on your car. Is that really a good idea? I am pretty cynical about any product that is supposed to be painted over rust and make it effectively go away. I am working on restoring a '31 Ford, and I sandblasted and soda-blasted the body and chassis to bare metal and used 2-part epoxy primer. But to do this, I had to take the car totally apart, and it's taken about 2 years so far. For my Spitfire, when I notice some of the original paint peeling off of the chassis, I take out my trusty can of Hammerite and touch it up... Doug Braun '72 Spit --- Nick Moseley <[EMAIL PROTECTED]> wrote: > My question is: what is the difference between > "regular" primer, and "etch" > primer? I saw a show recently where they sprayed on > etch primer in the > expectation that it would neutralize surface rust, > and leave a primed > surface. It was an Eastwood product, but I see Etch > primer for sale at my > FLAPS. _______________________________________________ Support Team.Net http://www.team.net/donate.html [email protected] http://autox.team.net/mailman/listinfo/spitfires http://www.team.net/archive
