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Topic: Painting on Perspex  (Read 688 times)
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annie is a ninja
« on: August 11, 2005 04:04:54 PM »

My aunt has employed me to make a wall hanging for her via paint on perspex. I am anxious to get started on it, but am troubled by the type of paint to use. My best guess is acrylic. Does anyone know for sure?
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Sweet_Enemy
« Reply #1 on: August 19, 2005 07:23:53 PM »

If Perspex is a kind of plastic, you can get mediums to mix into acrylics so that they'll stick more permanently to it. 

Here are some links that might be helpful: 

http://www.goldenpaints.com/products/medsadds/polymers/index.php

also their contact info, because I've heard their technical help-line people are really nice and helpful:

http://www.goldenpaints.com/contacts/contact.php

Also, we just got this book at our store, and I have been sneaking a free read whenever I have free time:
http://www.watsonguptill.com/detail.html?id=0-8230-3159-4

I don't know if it has info on perspex or similar, but if you work in acrylic, check it out.

cheers!
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BadBird
« Reply #2 on: September 01, 2005 06:10:50 PM »

Painting on plastic can be very hard.  There are 3 things that make it difficult.  1.)  Plastic is very smooth and has little tooth for paint to stick  2.) MANY plastics contain a additive that helps them stay slick and clean, so paints will not stick  3.) Plastics off gas.  This means that as plastics get older gases from the chemicals in the plastic escape into the air, if you cover it with something sold, like paint, the plastic can't breath and often bubbles will appear. 

Sorry to sound so negative but I owned a sign and graphics shop for 20 years and plastic was always a pain. But, for all I know you'll slap on a layer of Acrylic paint and have no trouble.

DO A TEST FIRST!
and try calling the manufacture of the material and they should be able to help you.
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river_roane
« Reply #3 on: September 09, 2005 12:38:04 AM »

I remember having seen commercials for a type of spray paint that is meant to bind to plastic to paint it effectively. I can't for the life of me remember the name of it, but I'd imagine if you went to a Home Depot or something like that, they could help you out.

In my search, I did find this, though: an "adhesion promoter." It seems like it will help prepare the surface so that it takes paint better, which may work better anyways if what you wanted to do can't be done with spray paint.
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LibbyLib
« Reply #4 on: October 04, 2005 04:04:27 PM »

I don't know if this is of any use to you, but I have actually used some mica powders, such as PearlEx, mixed them with some PerfectPaperAdhesive and if needed, with a little Gum Arabic.
I have pinted on glass and plastic and it worked perfectly.
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Greetings to you all
LibbyLib
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