removing paint from plastic, HNB to the rescue

Talk about modding or building your own guitar from scratch.
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Con-Tiki!
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removing paint from plastic, HNB to the rescue

Post by Con-Tiki! » Fri Jun 14, 2019 5:45 pm

i am open to suggestions.
I bouht a set of old National Val Pro knobs. Originally a cream white, currently painted black with either nail polish or model paint.
Any ideas about a remover that won't attack the plastic?

These knobs are beyond impossible to find. Only used on a couple supro models, drilled for pots I have never seen before. I'd hate to ruin them.. :k
Last edited by Con-Tiki! on Sat Jun 15, 2019 12:27 pm, edited 1 time in total.
(Christopher, also)
I've been to one World's Fair, a picnic, and a rodeo, and that's the stupidest thing i ever heard come out a pair of headphones.

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HNB
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Re: removing paint from plastic

Post by HNB » Fri Jun 14, 2019 6:18 pm

Klean-Strip Aircraft Paint Remover for Flexible Plastic?
[Christopher]
God, grant me the serenity to accept the things I cannot change, Courage to change the things I can, And wisdom to know the difference.

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HNB
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Re: removing paint from plastic

Post by HNB » Fri Jun 14, 2019 6:20 pm

[Christopher]
God, grant me the serenity to accept the things I cannot change, Courage to change the things I can, And wisdom to know the difference.

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antisymmetric
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Re: removing paint from plastic

Post by antisymmetric » Fri Jun 14, 2019 6:49 pm

Not sure- does the paint chip off with a bit of persuasion, or does it seem to have really bitten into the plastic?
Watching the corners turn corners

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mgeek
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Re: removing paint from plastic

Post by mgeek » Sat Jun 15, 2019 1:13 am

Got any pics? I'm with antisymmetric...a test chip might be revealing

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Re: removing paint from plastic

Post by Con-Tiki! » Sat Jun 15, 2019 4:43 am

they are pretty chipped and worn already, but with the flutes, i was feeling lazy.
they safest thing might be to scrape them with a dental tool, then polish them up.

i wish i were into normal stuff. Apart from these fairly obscure guitar projects, I have a series 2 land rover and a triumph cub spread all over my shop. Anything that is hard to find parts for in Pennsylvania, I'm in!
idiot.

here's a photo. The pots are dated on the side, and have solid 1/8" shafts. I originally assumed these guitars used the d-shaft mini pots that you find on a Harmony.
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(Christopher, also)
I've been to one World's Fair, a picnic, and a rodeo, and that's the stupidest thing i ever heard come out a pair of headphones.

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Re: removing paint from plastic

Post by Con-Tiki! » Sat Jun 15, 2019 4:47 am

HNB wrote:
Fri Jun 14, 2019 6:20 pm
https://youtu.be/6eAO6pHAlBI
dude!
oven cleaner!
i knew there was something old-school that we used to use to strip our D&D figures!
Shame on that guy for stripping the chrome off his death star droid, though...
(Christopher, also)
I've been to one World's Fair, a picnic, and a rodeo, and that's the stupidest thing i ever heard come out a pair of headphones.

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Re: removing paint from plastic

Post by mgeek » Sat Jun 15, 2019 5:09 am

Con-Tiki! wrote:
Sat Jun 15, 2019 4:43 am


i wish i were into normal stuff. Apart from these fairly obscure guitar projects, I have a series 2 land rover and a triumph cub spread all over my shop. Anything that is hard to find parts for in Pennsylvania, I'm in!
idiot.

nooooooo! obscure is good, the odder the better! That's literally my main requirement in a guitar 'will almost no one who sees me playing it know what it is' ;D

The fact it's mostly gone already bodes well. The Mr Muscle thing looks cool, if you haven't got anything like that to hand, I'd see what soaking them in a bowl of lukewarm water with some washing up liquid will do. Picking it off with tools would work, but you might end up with scratches...it looks like it's not stuck down very well though, so it may just flake off with a little encouragement.

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Re: removing paint from plastic

Post by Rgand » Sat Jun 15, 2019 8:11 am

HNB wrote:
Fri Jun 14, 2019 6:20 pm
https://youtu.be/6eAO6pHAlBI
Very cool idea! I'll remember that. Thanks for that link.

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Re: removing paint from plastic

Post by Con-Tiki! » Sat Jun 15, 2019 9:21 am

check this out.
bought some oven cleaner, sprayed one knob. After an hour or so, i scrubbed it with a toothbrush and rinsed it off.
there doesn't seem to be any damage to the surface, although i lost the pointer mark...
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(Christopher, also)
I've been to one World's Fair, a picnic, and a rodeo, and that's the stupidest thing i ever heard come out a pair of headphones.

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Re: removing paint from plastic, HNB to the rescue

Post by HNB » Sat Jun 15, 2019 12:59 pm

Sweet!!
[Christopher]
God, grant me the serenity to accept the things I cannot change, Courage to change the things I can, And wisdom to know the difference.

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Re: removing paint from plastic, HNB to the rescue

Post by Con-Tiki! » Sat Jun 15, 2019 1:14 pm

HNB wrote:
Sat Jun 15, 2019 12:59 pm
Sweet!!
heck yes.
Image
(Christopher, also)
I've been to one World's Fair, a picnic, and a rodeo, and that's the stupidest thing i ever heard come out a pair of headphones.

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Re: removing paint from plastic, HNB to the rescue

Post by Rgand » Sat Jun 15, 2019 4:24 pm

Those came clean! I assume you used a permanent marker or something to do the indicator line.

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Re: removing paint from plastic, HNB to the rescue

Post by mackerelmint » Sat Jun 15, 2019 4:35 pm

Oh wow. I've heard of using brake fluid, but oven cleaner seems better. Oven cleaner's good for a lot of things, apparently, like cleaning intake manifolds. And ovens, even.
This is an excellent rectangle

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marqueemoon
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Re: removing paint from plastic, HNB to the rescue

Post by marqueemoon » Sat Jun 15, 2019 7:50 pm

Very nice!

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