Strippers?

stillp

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No, not that sort! :p
I have some old models that are rather badly painted. What the best for removing the paint from them? I'd thought of trying caustic soda solution, but a) would it work, and b) would it damage the plastic?

Pete
 
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Deleted member 3568

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Or common house hold bleach but definitely nor caustic soda (depending on the plastic it could leave horrible scars)
 
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Aurora

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+1 to Paul's reply, little bit additional details;
it should be Dot3 brake fluid, Dot4 may damage plastic. maximum 4-5 hours cure should be enough from my experiance.
it is also re-useable. put it in a bowl with top cover. mine is glass and i used same dot3 for almost 2 years. i also clean my mixing botteles with dot3, ~15 bottles at a time.
be careful it is highly toxic.

cheers!
Safak
 

john

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I got some AK paint stripper but kept leaving it at work, so the wife suggested nail varnish remover, it worked really well, got the model back down to plastic, I've give it a good wash and re-primed it and it looks fine, but don't use it to clean your airbrush, it made a bit of a mess of mine and it took me ages to clean it probably
 

stona

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What sort of paint has been used ?

Cheers

Steve
 
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Mark P

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Some plastics yes Ken, Revell does not like it but Tamiya and Meng seem to be ok as long as you wipe them and not leave them in Acetone
 
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BobP

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I use Fairy power spray i sprayed it on then seal it up in a zip lock bag i think it even worked on enamels then i used a tooth brush after leaving it to soak overnight
 

stona

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Peter instead of nail varnish remover I use lab grade acetone because it is 99.9% pure so does the job in a quarter of the time and can be mixed with water if you find it to aggressive, plus its a dam sight cheaper. http://www.ebay.co.uk/itm/331585317454?_trksid=p2060353.m1438.l2649&var=540739056918&ssPageName=STRK:MEBIDX:IT

Are you sure that you are using acetone at that concentration? In my experience that will certainly react with polystyrene. I would suggest that anyone thinking of using acetone, even in the relativley low concentrations found in some nail varnish removers, might want to do a little test before sloshing the solvent all over their model.
Cheers
Steve
 
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Mark P

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Are you sure that you are using acetone at that concentration? In my experience that will certainly react with polystyrene. I would suggest that anyone thinking of using acetone, even in the relativley low concentrations found in some nail varnish removers, might want to do a little test before sloshing the solvent all over their model.
Cheers
Steve
Yes Steve its acetone at 99.9% but as I said you don't soak the plastic in it, rub over until the paint has gone and then wash off.
 

PaulTRose

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Good idea, I'll try that.

Pete

just take proper safety precautions

use a container big enough.....use a lid........dont spill it!....dont get it on your skin, wear gloves.......make sure you wash the kit in clean running water to get rid of it all..use an old tooth brush if need be to get in the nooks n crannys.......pour the bf back into the proper container when you are done and put it somewhere safe
 

stillp

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Yes, will do. Some years ago I completely restored a Triumph TR4A (full size, not the Airfix one!) and found the boot lid had been sprayed with a primer/filler that was impervious to every paint stripper I could find. I set it aside thinking I would have to sand all the paint off, and while it was lying around I left a rag that I'd used to mop up the brake fluid on it. A few weeks later I lifted the rag, and away came the primer/filler leaving clean metal behind!

Pete
 
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