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Old 06-11-07, 02:28 PM   #1
Fast Eddie
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painting chromoly

i have a few chromoly frames to paint, does anyone have any recomendations as far as self etching primer as opposed to the usual? thanx, fast eddie outty
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Old 06-11-07, 05:10 PM   #2
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like as in chrome, i sand the frame with 320 then work my way to 800
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Old 06-11-07, 05:40 PM   #3
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Quote:
Originally Posted by Fast Eddie
i have a few chromoly frames to paint, does anyone have any recomendations as far as self etching primer as opposed to the usual? thanx, fast eddie outty
FYI:
chrome != chromoly.

Chrome is a treatment that makes steel look all shiny.
Chromoly is a kind of steel.
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Old 06-13-07, 08:30 PM   #4
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these are chromoly, not chromed, theyre old bmx bikes
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Old 06-13-07, 10:53 PM   #5
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Ahh, sorry. I guess you just threw me off a little, I wasn't sure why it would matter that they were chromoly vs. high ten vs. sheet metal etc... I don't really have any suggestions other than to stop in at your neighborhood auto paint supply place. I used some kind of self etching primer on my Vespa and I was happy with the results.
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Old 06-14-07, 03:49 PM   #6
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go with 320(wet)+400(wet)+600(wet)+etching primer+800(wet)+primer again+1000(wet)+paint+800(wet dont do this if its metallic paint or candy paint)+Clear+800(wet)+final Clear+2000(wet)+rubbing compound+waz+glaze. this is how i paint my bicycles
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Old 06-18-07, 02:02 PM   #7
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rattlecan+rattlecan+beer+rattlecan+beer+red devil high gloss polyeurethane.
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Old 06-18-07, 10:18 PM   #8
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so...is the idea to rough up the surface a bit so that the primer will stick, then smooth out/wet sand the primer in between coats, the paint? i have a "practice" frame that nees some of my TLR (tender lovin rebuildin) since its my first chromoly paint job i will probably end up painting it black to cover up any mistakes.

can someone tell me, how do you tell the difference between chrome coated, and chromoly, i wanna make sure im identifying it right,

thanx, fast eddie
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Old 06-19-07, 09:39 AM   #9
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A chrome plated bike would look really shiny, like the bumper of an old car. Chromoly is just a type of steel, and could be painted, chrome plated, powder coated etc... You can't tell chromoly from regular steel just by looking at it and you would paint it the same way you would paint regular steel.
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Old 06-30-07, 04:35 PM   #10
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Quote:
Originally Posted by Fast Eddie
i have a "practice" frame that nees some of my TLR (tender lovin rebuildin) since its my first chromoly paint job i will probably end up painting it black to cover up any mistakes.
Black (gloss) is the hardest color to paint. It shows all imperfections.
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Old 06-30-07, 05:21 PM   #11
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Use phosphoric acid etch on any bare metal. Auto paint supply houses have it.
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Old 07-01-07, 12:12 AM   #12
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Originally Posted by jschatz
Black (gloss) is the hardest color to paint. It shows all imperfections.
x2
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Old 07-01-07, 09:08 AM   #13
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WOW!!! im glad you guys told me that about the black paint showing imperfections so well, i had no idea. after reading these posts i think i should "play it safe" and just use the acid etch primer on anything i paint, its only a few extra bucks and i suppose its better to have it and not need it than to need it and not have it. fast eddie outty
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Old 07-06-07, 04:58 PM   #14
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Zinc Chromate primer is the best. But beware, it is toxic (carcinogen) and you must wear a respirator.

Most chemicles that end in "chromate" are carcinogenic.
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