primer help
#4
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Year: 1988
Model: Cherokee
Engine: AMC242
Coming from someone who used to do paint prep for a living in a body shop, there are only a couple of reasons I can think of to need actual primer -
1) The paint job you're wanting to cover is defective, and needs to be stripped down to bare metal.
2) You're trying to cover a dark paint job with a light colour, and need to strip it down.
Generally speaking, if you're painting something that's already been painted you just use fine paper to strip the clearcoat and break the gloss on the colour coat, and use that for your primer. You might need a can as a "guide coat" for sanding down filled areas, but that's about it. If you knock it down to bare metal, you've gone too far.
Unless there's something seriously wrong, the factory paint job is probably the best primer coat you could hope to get!
1) The paint job you're wanting to cover is defective, and needs to be stripped down to bare metal.
2) You're trying to cover a dark paint job with a light colour, and need to strip it down.
Generally speaking, if you're painting something that's already been painted you just use fine paper to strip the clearcoat and break the gloss on the colour coat, and use that for your primer. You might need a can as a "guide coat" for sanding down filled areas, but that's about it. If you knock it down to bare metal, you've gone too far.
Unless there's something seriously wrong, the factory paint job is probably the best primer coat you could hope to get!
#6
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Year: 2001
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#7
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Year: 1988
Model: Cherokee
Engine: AMC242
It derives from two basic principles:
1) Don't do work you don't have to. Unless there's something wrong with the paint job, you don't have to strip down to bare metal.
2) Don't waste good work that someone else did. The OEMs use a decent quality of paint (except for the late 1980's, when they were getting the hang of the two-part Urethane mixes,) and universally a good primer, so why waste it?
As I said, you'd have trouble covering a darker colour with a lighter one - but even that can be mitigated somewhat, usually by going a bit lighter on coats and building them up more.
1) Don't do work you don't have to. Unless there's something wrong with the paint job, you don't have to strip down to bare metal.
2) Don't waste good work that someone else did. The OEMs use a decent quality of paint (except for the late 1980's, when they were getting the hang of the two-part Urethane mixes,) and universally a good primer, so why waste it?
As I said, you'd have trouble covering a darker colour with a lighter one - but even that can be mitigated somewhat, usually by going a bit lighter on coats and building them up more.
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