Author Topic: Help, I need to remove some paint  (Read 526 times)

Offline Massassi

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Help, I need to remove some paint
« on: Sun Feb, 26, 2017, 09:00:AM »
I made a mistake on one of my models. I painted it with Humbrol Enamel paint 22 white. But it turned out yellow. (as my may see in the picture, the main body and wing are yellow the cockpit and square part are unpainted, it might not be that clear in the picture, but in real live it looks horrible.).

So my question is how do I remove the paint. Because if I paint it again I will lose all the detail.

Can someone help me out?



Offline urumomo

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Re: Help, I need to remove some paint
« Reply #1 on: Sun Feb, 26, 2017, 09:33:AM »
 
     Oven cleaner   ,    others  -

                                - https://www.youtube.com/watch?v=omwDdARX6U0

                                  http://www.armorama.com/modules.php?op=modload&name=SquawkBox&file=index&req=viewtopic&topic_id=134385&page=1&ord=1

                                  http://armorama.com/modules.php?op=modload&name=SquawkBox&file=index&req=viewtopic&topic_id=92693&page=1&ord=0


    BTW   -- that looks white to me  ,
                                                                  I guess I need some coffee   . . ...   
« Last Edit: Sun Feb, 26, 2017, 09:47:AM by urumomo »

Offline Elm City Hobbies

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Re: Help, I need to remove some paint
« Reply #2 on: Sun Feb, 26, 2017, 11:55:AM »
Looks white to me as well

Offline Belugawrx

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Re: Help, I need to remove some paint
« Reply #3 on: Sun Feb, 26, 2017, 11:58:AM »
I have always used automotive brake fluid Dot3...
Never fails
Bruce
cut towards your chum not your thumb!!

Offline Quaralane

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Re: Help, I need to remove some paint
« Reply #4 on: Sun Feb, 26, 2017, 12:19:PM »
A soak in Simple Green can remove a LOT of old paint.
Stripped and redid a resin Viper twice with it.

There's also a graffiti remover called "Krud Kutter" that can work very well

As always, though, test it first before going to the model you're trying to salvage
"There must be some way out of here," said the Joker to the Thief.
"There's too much confusion. I can't get no relief."
--Bob Dylan, "All Along the Watchtower" 1965--

Offline Massassi

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Re: Help, I need to remove some paint
« Reply #5 on: Sun Feb, 26, 2017, 01:10:PM »
A am going to try alcohol first. (for 24 hours). The Parts are really yellow, the flash makes them all turn white

Offline urumomo

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Re: Help, I need to remove some paint
« Reply #6 on: Sun Feb, 26, 2017, 01:12:PM »

  Don't think 24 hrs will be enough   ---  maybe 24 years @ 500 F

Offline Massassi

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Re: Help, I need to remove some paint
« Reply #7 on: Sun Feb, 26, 2017, 02:16:PM »
Has anyone used thinner?

Offline urumomo

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Re: Help, I need to remove some paint
« Reply #8 on: Sun Feb, 26, 2017, 02:25:PM »
You need a chemical that will dissolve the coating and not attack the plastic .

Thinners are just that  - thinners .
Either water in acrylic emulsions or white spirits / turpentine in oil-based .
Once oil based is cured it will not be effected by it's thinner  ,  it changes chemically .

Acrylics do not cure  -- they do not change chemically  , so the introduction of a solvent like alcohol puts them back into solution .

You need the hypo- whatever the chem in the oven cleaner or whatever chemical is in brake fluid that breaks down the cured enamel but does not attack the plastic .
                          Paint stripper would attack the plastic .

     

Offline Massassi

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Re: Help, I need to remove some paint
« Reply #9 on: Tue Feb, 28, 2017, 01:06:PM »
Thanks all,

I tried a Dutch oven cleaner and it works great. The paint can be removed easily and the plastic remains unharmed. So now the hard work of cleaning every part.


Offline urumomo

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Re: Help, I need to remove some paint
« Reply #10 on: Tue Feb, 28, 2017, 01:10:PM »

  Cool    :)

       Glad you reported back    ;D     

     That's a big reason I primer with oil-base and top-coat with acrylics  ,
        I can just wipe away any acrylic with rubbing alcohol and leave the primer unaffected so I can just start over .


        ....   .  that thing still looks pretty white to me   ;)