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danford1
Would this 50/50 mix of Acetone and MEK be good to clean bare metal with prior to spraying epoxy?
Danford1
Danford1
crashtech;n81549 said:SPI 700-1 is what you want to use to clean metal before epoxy. It's been tested to work with the epoxy and you always know it's pure, unlike hardware store solvents.
Barry;n81315 said:When i get the call about a few bubbles popping up here or there, I can right away from where the bubbles are tell them, the metal was cleaned with thinner or acetone, it has its own road-map as to what and how it happens and when the truth comes out,I'm always right in my guess. Yes it's a great cleaner but will always cause a problem on 3 or 4 panels when an allover is done that way.
30-45 minutes is set as a standard because there is no way to know the environmental conditions where it's being used. If you have high humidity and/or a wet floor, then yes, a long wait time is smart. But in low humidity conditions, 30 minutes is overkill. There is a technique where the water base is followed by solvent base, apparently this gets rid of the water base residue and speeds the process. Barry might be able to add something about that. I know that in the high desert where I work, 15 minutes is plenty. We just come back in and blow off the panel to make sure there are no hidden places the liquid may have pooled up, and go.danford1;n81566 said:Yes I read that recently... Waiting 45 minutes for it to dry is what kills me. Some of us don't have that much time to sit and wait. I suppose what I may do is wipe down the metal then while waiting for it to dry, mix the epoxy because That needs to sit 30-45 minutes too. By then the metal will be dry but probably have more dust or "stuff" on it from sitting around so long (I'm in my garage, not a fancy shop). Sounds like a tack rag is needed for that.
danford1;n81540 said:Would this 50/50 mix of Acetone and MEK be good to clean bare metal with prior to spraying epoxy?
Danford1
danford1;n81566 said:Yes I read that recently... Waiting 45 minutes for it to dry is what kills me. Some of us don't have that much time to sit and wait. I suppose what I may do is wipe down the metal then while waiting for it to dry, mix the epoxy because That needs to sit 30-45 minutes too. By then the metal will be dry but probably have more dust or "stuff" on it from sitting around so long (I'm in my garage, not a fancy shop). Sounds like a tack rag is needed for that.
I remember back when I used Dupont products. They had something called Final Klean. It seemed Great. You scrubbed down the parts with it just before you painted them.
No sitting around waiting was needed. Just wipe it dry and start spraying. It worked great... I wonder if they still sell that?
Danford1
shine;n81640 said:believe me you cant get away from washing with thinner . on the vette sites that's all you hear. use stripper then scrub with scotchbrite and lacquer thinner .