red oxide primer - paint over?
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ress
- Posts: 181
- Joined: Sat Mar 09, 2002 12:01 am
red oxide primer - paint over?
If I have red oxide primer on my beetle and I spray a dark navy blue two stage(base+clear) over it, do I run a chance of the paint looking a purple color in ceratin bright lights? If I put three coats of the navy blue on will it cancel out the red oxide color?
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dragenwagen
- Posts: 134
- Joined: Tue Aug 03, 2004 9:25 am
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Guest
I do paint and body work for a living. A decent urethane base( sherwin williams, PPG's DBU, martin senior, etc.) should easily cover in three coats (if applied correctly) and a premium urethane base (Dupont's ChromaBase, PPG's DBC, Sikkens AutoBase II, Dupont's HotHues Candy bases) should do it in two coats. This is definately a "you get what you pay for" product, Except for Sikkens which is way more expensive than other premiums but no better in my opinion.
But, none of them will properly adhere to that lacquer based red oxide primer. Using a wet-on-wet sealer before painting will help, but still not get you the best results. Lacquers bond chemically and urethanes bond mechanically (or maybe its the other way around !?!) and they will lay over each , but not form a permanent bond. You will notice that your paint chips and scratches easily, and you may get significant die-back (loss of gloss and depth) and you will DEFINATELY get sand-scratch swelling with that junk primer. If you are going to use an enamel based two stage system, adhesion should be ok, but why settle on enamel after all that hard work when urethane will look and last much better!
But, none of them will properly adhere to that lacquer based red oxide primer. Using a wet-on-wet sealer before painting will help, but still not get you the best results. Lacquers bond chemically and urethanes bond mechanically (or maybe its the other way around !?!) and they will lay over each , but not form a permanent bond. You will notice that your paint chips and scratches easily, and you may get significant die-back (loss of gloss and depth) and you will DEFINATELY get sand-scratch swelling with that junk primer. If you are going to use an enamel based two stage system, adhesion should be ok, but why settle on enamel after all that hard work when urethane will look and last much better!
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Guest
I do paint and body work for a living. A decent urethane base( sherwin williams, PPG's DBU, martin senior, etc.) should easily cover in three coats (if applied correctly) and a premium urethane base (Dupont's ChromaBase, PPG's DBC, Sikkens AutoBase II, Dupont's HotHues Candy bases) should do it in two coats. This is definately a "you get what you pay for" product, Except for Sikkens which is way more expensive than other premiums but no better in my opinion.
But, none of them will properly adhere to that lacquer based red oxide primer. Using a wet-on-wet sealer before painting will help, but still not get you the best results. Lacquers bond chemically and urethanes bond mechanically (or maybe its the other way around !?!) and they will lay over each , but not form a permanent bond. You will notice that your paint chips and scratches easily, and you may get significant die-back (loss of gloss and depth) and you will DEFINATELY get sand-scratch swelling with that junk primer. If you are going to use an enamel based two stage system, adhesion should be ok, but why settle on enamel after all that hard work when urethane will look and last much better!
But, none of them will properly adhere to that lacquer based red oxide primer. Using a wet-on-wet sealer before painting will help, but still not get you the best results. Lacquers bond chemically and urethanes bond mechanically (or maybe its the other way around !?!) and they will lay over each , but not form a permanent bond. You will notice that your paint chips and scratches easily, and you may get significant die-back (loss of gloss and depth) and you will DEFINATELY get sand-scratch swelling with that junk primer. If you are going to use an enamel based two stage system, adhesion should be ok, but why settle on enamel after all that hard work when urethane will look and last much better!