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Go Back   WetCanvas > Explore Media > Casein, Gouache, and Egg Tempera
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Old 09-15-2015, 10:35 PM
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Superturtle Superturtle is offline
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Tell me about casein

I've been doing a lot of gouache painting lately, and I love so many things about it: the blendability, the matte finish, the easy cleanup. The only thing I don't like: how fragile finished paintings are. I'd love, for example, to paint on surfaces that don't require framing. I was toying with the idea of giving oils a shot, but the mess and long drying time gives me pause. Now that I've heard a little more about casein being a lot like gouache, I think that might be a better fit.

A few questions:
- How does the blendability compare to gouache? Or better put, how is it different from gouache?
- Does it require some sort of barrier? For example, if I paint on board, will it be ok, the way an oil or acrylic painting would?
- Is there a given curing time I need to be aware of?

Thanks!
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Old 09-16-2015, 03:57 AM
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Yorky Yorky is online now
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Re: Tell me about casein

Check out Char's demo on gallery wrapping watercolours which she now coats with Dorland wax and can be hung without frames. The technique should work with gouache.

Doug
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Old 09-17-2015, 03:53 PM
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Dharma_bum Dharma_bum is offline
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Re: Tell me about casein

Here is the Richeson casein FAQ page: http://www.richesonart.com/products/...caseinfaq.html

Dan
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Old 09-18-2015, 12:14 AM
M.L. Schaefer M.L. Schaefer is offline
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Re: Tell me about casein

Hello, Julie! Here is a thread about Casein: You may find it interesting!

http://www.wetcanvas.com/forums/show...errerid=134492

As for Gouache, I use Golden Archival Varnish, Satin, sprayed in light coats (outside). In fact, today I just sprayed some ACEOs I painted a while ago, and the results are terrific. I would tend not to use anything you physically wiped over a Gouache painting as it may lift the Gouache (except, of course, Acryl Gouache).

Many artists on this site also use Egg Tempera, easy to make yourself, cures to a wonderful look, artists here have gorgeous paintings!

Do a search of this Forum for Casein and Gouache!

Margarete
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Old 09-20-2015, 03:47 AM
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Richard Saylor Richard Saylor is offline
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Re: Tell me about casein

Quote:
Originally Posted by Superturtle
.......A few questions:
- How does the blendability compare to gouache? Or better put, how is it different from gouache?
- Does it require some sort of barrier? For example, if I paint on board, will it be ok, the way an oil or acrylic painting would?
- Is there a given curing time I need to be aware of?

Thanks!

Casein tends to become less soluble in water as it cures, so it tends to be more difficult to blend than gouache except when it is fresh.

It does as well as acrylic on most any support, except that it is a bit more brittle.

It becomes more waterproof the longer it cures.
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Old 09-20-2015, 04:10 AM
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Richard Saylor Richard Saylor is offline
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Re: Tell me about casein

Here is an old casein I dd. I have a couple more if I can find them. Casein can be hell on brushes, so I tend to use gouache in spite of the extremely delicate surface.
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Old 09-20-2015, 04:27 PM
M.L. Schaefer M.L. Schaefer is offline
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Re: Tell me about casein

Beautiful work, Richard, and a wonderful explanation. I have to ask, when it cures will it be a satiny/glossy finish to the eye, and will it be a textured or smoother finish to the touch (depending on what we choose?). Hope that makes sense?

The colors are quite subtle in your painting... do you mix your own Casein or purchase ready made? When I decided to try acrylic, I purchased some very inexpensive (cheap) brushes on eBay, one set softer brushes, the other bristle type brushes... I imagine both will become useful!

Margarete
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Last edited by M.L. Schaefer : 09-20-2015 at 04:32 PM.
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Old 10-23-2015, 04:33 PM
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Richard Saylor Richard Saylor is offline
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Re: Tell me about casein

Quote:
Originally Posted by M.L. Schaefer
Beautiful work, Richard, and a wonderful explanation. I have to ask, when it cures will it be a satiny/glossy finish to the eye, and will it be a textured or smoother finish to the touch (depending on what we choose?). Hope that makes sense?

The colors are quite subtle in your painting... do you mix your own Casein or purchase ready made? When I decided to try acrylic, I purchased some very inexpensive (cheap) brushes on eBay, one set softer brushes, the other bristle type brushes... I imagine both will become useful!

Margarete

Sorry, I missed your post somehow. I use ready-made Shiva casein colors and a very limited palette. My paintings dry to a smooth, matte finish, very similar to that of gouache, but much more durable. For a glossier finish, it can be varnished.
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