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Tips for removing resprayed paint job?

Old 09-30-12, 04:41 PM
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frantik
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Tips for removing resprayed paint job?

Some jerk painted over the gorgeous chromed frame on my Univega Alpina Pro.. any tips on how to remove? I've been scratching it off but it takes forever and if you're not careful the clearcoat comes with it. Any suggestions on a solvent I could use? I don't want to damage the clearcoat underneath or the black chrome under the clear coat. I'd also like to not damage the decals or cause them to delaminate/fall off/whatever

I don't know much about removing paint. I'd guess the paint I want to remove is cheap automotive grade paint, but possibly spray paint.


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Old 09-30-12, 04:45 PM
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airplane paint stripper at your local auto parts store.
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Old 09-30-12, 04:47 PM
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Acetone works pretty good on spray paint. Just wipe it on and wipe it off after a few minutes. It takes a while but you might be able to keep the clear coat.

If it were me I would disassemble the entire bike and remove the paint with some heavy duty airplane stripper. This would also remove the clear coat (which is probably pretty scratched up anyway) but then you could polish it and put some wax on it to really make it shine.
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Old 09-30-12, 04:55 PM
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the decals are on top of the clearcoat from what I can tell, so I think I would lose them if I stripped the paint completely. Admittedly it would probably look pretty sweet totally "debadged" but I dunno..

What is the purpose of clearcoat on chrome anyways? just extra corrosion protection?
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Old 09-30-12, 05:25 PM
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Looks like this bike deserves the real treatment - Chem strip prime and paint - Do the whole thing...
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Old 09-30-12, 05:28 PM
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I have successfully taken off rattlecan with acetone (nail polish remover) and was able to save the decals. Pick up a small bottle and give it a try before doing anything more drastic.
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Old 09-30-12, 05:48 PM
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Another vote for acetone. Although once you start taking enough paint off, you will usually discover why someone sprayed it in the first place.
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Old 09-30-12, 05:50 PM
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In my experience, different brands of rattlecan paint will dissolve with different solvents. So I'd start with something pretty innocuous, like denatured alcohol, then proceed to the nastier stuff... naptha, paint thinner, mineral spirits, acetone, xylol.... I don't know the exact sequence, but don't go near acetone and xylol until you've tried the weaker ones.
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Old 09-30-12, 06:03 PM
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I'd tape off the decals and strip the rest.

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Old 09-30-12, 06:29 PM
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Try Goof Off I have very good luck using it to remove overspray on a bike, where some one painted something nearby, I have also used it successfully to get the excess overspray off of an old Singer Sewing machine where someone spray painted the cabinet without removing the machine first.

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Old 09-30-12, 07:11 PM
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after spending an hour or so with a plastic scraper i got a decent amount off, but some comes off a lot easier that other parts

I'm gonna try some nail polish remover since i can hopefully get a small amount of it for not too much $.. at this point i don't really care about the clear coat or the decals i don't think. it looks like the clearcoat was already failing on the fork when it got repainted.. metal underneath looks totally fine
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Old 09-30-12, 07:14 PM
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Originally Posted by frantik View Post
after spending an hour or so with a plastic scraper i got a decent amount off, but some comes off a lot easier that other parts

I'm gonna try some nail polish remover since i can hopefully get a small amount of it for not too much $.. at this point i don't really care about the clear coat or the decals i don't think. it looks like the clearcoat was already failing on the fork when it got repainted.. metal underneath looks totally fine
In that case, I'd get some real stripper and save yourself a great deal of effort.
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Old 09-30-12, 07:19 PM
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Originally Posted by RFC View Post
In that case, I'd get some real stripper and save yourself a great deal of effort.
I will if the acetone it too much of a pain in the ass. i don't want to lose whatever is making the chrome black though.. it looks almost like anodizing, though kind of blotchy in spots
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Old 09-30-12, 08:47 PM
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Good luck with the paint strip. Have not had to strip spray paint from a whole frame to save the finish underneath. I do know that goof off does seem to take light applications of paint off another painted surface.


Mine seems to have lost that "new paint "finish but there's enough to look nice anyway, hey it's a MTB.
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Old 09-30-12, 08:57 PM
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yeah underneath mine it looks like that, though yours looks worse. what's interesting on your pic is the dark "paint" underneath the decal has come off?

if i knew aircraft paint remover wouldnt hurt the dark finish i'd just go grab some. i have some other paint stripper here that might be worth spot testing


btw i don't think respray is spray paint, i think it's automotive paint.. not really sure though, and even less sure how much of a difference it makes
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Old 09-30-12, 10:34 PM
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just grabbed a little bottle of nail polish remover and it's taking this paint right off without harming the dark chrome underneath. not sure if it's affecting the clearcoat just yet but glad to see the paint coming off so easily


edit... doh.. it was taking off the light coat on the undeside of the BB but the thicker stuff is being pretty stubborn. i spot tested a section with some paint stripper and paint came off in seconds. i think it took the clearcoat with it though.. hard to tell

Last edited by frantik; 09-30-12 at 11:05 PM.
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Old 10-01-12, 07:15 AM
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The best stuff I found is carborater cleaner for cars.
It usually does the job without harming the original paint.
I spray it on and wipe quickly then do it again
Over decals it sometimes doesn`t affect the decal but on some it takes the printing right of.

It had saved me a lot of time, them I usually wax it after.
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Old 10-01-12, 03:03 PM
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i bit the bullet and used the can of paint stripper i've got here. it's gonna need a second application of the paint stripper but the black chrome is fine

the decals were lost and the clear coat too. it actually looks and feels kind of nice with just the bare metal but I'm not sure how durable the finish is
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Old 10-01-12, 03:07 PM
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Originally Posted by frantik View Post
i bit the bullet and used the can of paint stripper i've got here. it's gonna need a second application of the paint stripper but the black chrome is fine

the decals were lost and the clear coat too. it actually looks and feels kind of nice with just the bare metal but I'm not sure how durable the finish is
Good choice! The finish will be just fine. I have found chrome finishes on old and new bikes (like the Madison above) are very durable.

Let's see the frame.
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Old 10-01-12, 07:02 PM
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Originally Posted by RFC View Post
Let's see the frame.
until i get a chance for the second round, here's a little tease

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Old 10-01-12, 09:10 PM
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the aircraft stripper won't hurt your chrome. i used it on a chrome fork.
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Old 10-02-12, 05:27 PM
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The black looks like primer to me. I'd get some real paint stripper and get it all off.
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Old 10-02-12, 05:43 PM
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it's not primer, it's "black chrome"... I've started with the paint stripper.. it's 95% gone now but the can i had here is empty now so i need to go get more



Remove that paint!!!
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Old 10-02-12, 07:13 PM
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Man, I see you are going to town on that offensive repaint. I too am anxious to see the final results.Shame about the decals.

That tease of a pic shows your fork has the spring holes on the inside. Back to square one with the cantilever search. My fork has them on the outside
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Old 10-02-12, 07:26 PM
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Originally Posted by 3speedslow View Post
Man, I see you are going to town on that offensive repaint. I too am anxious to see the final results.Shame about the decals.

That tease of a pic shows your fork has the spring holes on the inside. Back to square one with the cantilever search. My fork has them on the outside
maybe it was the frame maker's first day on the job? lol that is weird with your cantis there

with regard to the decals, honestly i'm really digging the "bare" look.. plus the decals were in pretty bad shape.. I got the sharpie off but they were in pretty bad shape. I think the previous owner (accidentally?) tore up the top layer of the downtube decals when they did the repaint. they also cut out/around the seat tube and head tube Univega logos (i guess so paint would stick better?

the paint job itself wasn't poorly done but the prep was awful. i suppose though if glad they didn't do it right because then they would have sanded the chrome. you can still see the outline of the decals on the frame, even read the univega and alpina pro.. it's like etched into the smokey finish. overall the bike looks really cool.. has a unique "patina" without looking old and crusty lol


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