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Old 08-20-2017, 11:05 PM
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oramasha oramasha is offline
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Question Gouache over Fluid Matte Acrylic

Hiya,

I mostly paint in acrylic, but I enjoy mixed media, too!

I've tried to paint gouache over an acrylic undertone, but the gouache repelled the surface (on paper). I'm thinking the glossy surface was the issue.

Does anyone know if you can paint in gouache over a matte acrylic?

Thanks!

Last edited by oramasha : 08-20-2017 at 11:21 PM.
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Old 08-21-2017, 02:00 AM
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Re: Gouache over Fluid Matte Acrylic

I think you would need to add some sort of clear acrylic medium similar to Golden's absorbent ground, but I haven't heard of a clear version so far. Unfortunately, acrylic, while being somewhat porous is not nearly as porous as watercolour paper or other fibrous supports, so I think you will find it difficult to paint gouache over any kind of acrylic except something similar to Golden's Absorbent Ground (which is white).
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Old 08-21-2017, 03:46 AM
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Re: Gouache over Fluid Matte Acrylic

I think you need some element of absorbency for gouache to work.

Doug
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Old 08-21-2017, 11:59 AM
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Re: Gouache over Fluid Matte Acrylic

Ok, thanks Eraethil and Doug.
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Old 12-22-2017, 11:14 PM
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Re: Gouache over Fluid Matte Acrylic

I've been looking into this myself, trying to learn anything new since I'm still a novice when it comes to painting.

From what I've read on the subject, any paint that has a gloss to it would hinder the Gouache sticking onto it because the gloss factor acts as a sealer; think of it like varnish on wood, it protects the wood from the elements like moisture.

If the same rules apply to my own understanding about sealants and fixatives, any paint with a Matte finish should allow another coat of paint to be put onto it, including Gaouche, because the surface isn't "sealed" like paints with a Gloss Finish would.

That's my earliest understanding on the subject, since I do drawings with charcoal from time to time, fixatives is something charcoal artists invest in greatly. I checked up on it to be sure. I hope this helps out.
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Old 12-31-2017, 09:03 AM
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Re: Gouache over Fluid Matte Acrylic

You might try a test strip with clear gesso applied and then try the gouache over that. Just a thought. .
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Old 12-31-2017, 04:08 PM
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Re: Gouache over Fluid Matte Acrylic

Listen, acrylic is plastic. That's non-absorbent to a great extent and a water protectant/sealant. So water based liquid paints, including regular gouache, are likely to bead up and not stick to it. A matte medium or varnish that is acrylic has the same problem for what you want to do. Pastel might stick to it, but likely not regular water based gouache.

What you might do, if really want a gouache finishing look, is to switch to one of the newer acrylic based gouaches, such as Turner Acryl Gouache. That will stick to plastic surfaces and I understand that it is actually acrylic based itself.

Judging how well it sticks to its own slick plastic palette, I'm pretty confident it will do what you are seeking. It's still water based and it looks and acts like goache.
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