Removing paint/ink from plastic signs

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kerick
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Removing paint/ink from plastic signs

Post by kerick » Tue Jan 09, 2018 7:13 pm

As my subject line suggests, has anyone used a solvent to remove the paint or ink from plastic signs? I know I can sand it off but its a pain to do a large area. I was thinking of trying oven cleaner or degreasing detergent in the same way as enamel paint. I'm hoping someone has an easier method.
I like dreams of the future better than the history of the past.
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TazMan2000
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Re: Removing paint/ink from plastic signs

Post by TazMan2000 » Tue Jan 09, 2018 8:06 pm

Superclean
I've never tried it on signs, but I have tried it on plastic models and this works great.

TazMan2000

kerick
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Joined: Fri Jul 17, 2009 10:44 am
Location: Outside Chicago, but not far enough

Re: Removing paint/ink from plastic signs

Post by kerick » Wed Jan 10, 2018 10:16 pm

Is this like Simple Green we get in the US?
I like dreams of the future better than the history of the past.
Patrick Henry

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Rogviler
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Re: Removing paint/ink from plastic signs

Post by Rogviler » Wed Jan 10, 2018 11:02 pm

SuperClean used to be Castrol SuperClean, AKA Purple Power. It's essentially a sodium hydroxide solution, same as oven cleaner or drain cleaner. You could try it, but in my experience most of the signs seem to be printed with almost like a styrene paint, so the only thing that dissolves it is something that dissolves styrene. I'm interested to know the results, as I've never thought to try removing the printing.

-Rog
You can now buy gluten-free apples and non-GMO water. We are truly living in the future!

Andrew Gorman
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Re: Removing paint/ink from plastic signs

Post by Andrew Gorman » Thu Jan 11, 2018 9:35 pm

if the print is really recalcitrant, just sand it off. Water on a glass sheet will usually hold the plastic in place and sand away!

Wug
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Re: Removing paint/ink from plastic signs

Post by Wug » Sat Jan 13, 2018 8:37 am

SuperClean is not sodium hydroxide.

http://supercleancanada.com/MSDS/EN_Sup ... -23-11.pdf

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Rogviler
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Re: Removing paint/ink from plastic signs

Post by Rogviler » Sat Jan 13, 2018 11:43 am

Wug wrote:
Sat Jan 13, 2018 8:37 am
SuperClean is not sodium hydroxide.

http://supercleancanada.com/MSDS/EN_Sup ... -23-11.pdf
Wow, that means I have a rare factory-error label on mine. This sucker's going on eBay!

Image

Regardless, not the point. Someone try it and report back. I might if I remember to do so.

-Rog
You can now buy gluten-free apples and non-GMO water. We are truly living in the future!

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