Originally posted by e30austin
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Zinc Plating Subframe/traiiling arms?
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Originally posted by 15Michaeljoseph View PostI really think OP should paint/powder coat. From March to June I did an OCD+ subframe/arms/underbodywork job on my daily e30, and ended up painting my subframe. The car is my daily, and has been through 33 years of New England winters (although it is/ has been always garaged and washed frequently) so the subframe and arms were crusty in spots. Mechanically stripped the rusty areas with wire wheels, leaving some areas where the factory paint was very well adhered, and then cleaned it all very well with acetone. Any areas that had some light pitting left behind from the rust got a light coat of rust reformer, then two coats of rust encapsulate paint. After that, I sanded and 2k primed everything, and then went through several cans of high solids chassis paint over it. Inside those hollow areas/ drip holes, I shot some internal frame coat spray with a flexible wand spray tip. Once it was all back in the car, I hit everything I could reach with some heavy duty cosmoline wax spray. Long story short, I feel confident in the paint and the process didn't really break the bank... Though I hope to have a second car sooner than later so I can keep the old girl off of the salty winter roads. Sent from my moto g(6) using Tapatalk
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Originally posted by jwest11 View PostI appreciate the quick how to! Great idea for those drip holes, never thought of that. Will definitely reference this post if I decide to paint everything myself.(OO=[][]=OO) For Life
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I thought that the parts were originally e-coated? That's generally what high volume manufacturers use, probably going to have a hard time finding someone to do individual parts, and I'm not sure how well they protect against corrosion. IMO painting is the way to go and I'd agree with 15Michaeljoseph's process except I'd just sandblast everything, mostly because it's fun. Chemically treat any rusted areas until the metal is perfectly clean then hit it with a gnarly epoxy primer.
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Originally posted by E30 Wagen View PostI thought that the parts were originally e-coated? That's generally what high volume manufacturers use, probably going to have a hard time finding someone to do individual parts, and I'm not sure how well they protect against corrosion. IMO painting is the way to go and I'd agree with 15Michaeljoseph's process except I'd just sandblast everything, mostly because it's fun. Chemically treat any rusted areas until the metal is perfectly clean then hit it with a gnarly epoxy primer.
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