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I'd always been taught that you couldn't paint over oils with acrylics because of adhesion problems and drying problems leading to cracking. Recently while looking around the net I came across a Gnome DVD with Dave Dorman showing how he paints. Apparently, he paints acrylics over dry oils.
Are there any rules to this and will he run into problems later on? I plan to buy his DVD just because I'm so intrigued with how much he mixes his media. In the free video you can watch he even uses markers over the oils. I plan to try all this but thought some here may have tried before.
basically the layer of acrylic is only sitting gingerly ontop of the layer of oil. Eventually (who knows when) the layer of acrylic will start to peel. This happened to one of my teachers. Also I know a few artists who have exploited this to make translucent rolled paintings. They paint an acrylic painting on top of an oil ground and when it is dry they peel it off.
If you want your painting to last, its a very bad idea.
Please be clear that where the intended product is for an "illustration" job, it really doesn't matter a damn whether the painting is "archival", because the final product is a photo/scan/digital image capture, and as long as it hold up long enough to achieve that, then thats all that really counts - a very different consideration from a "fine art" painting which should be able to hang on someone's wall for at least the next 50 years, and preferably a lot longer.
Wouldn't suggest it.
Should work alright the other way around though.
Agreed entirely, David !
painting oil on acrylic is the standard procedure .. all primed canvases come acrylic primed , for use with acrylic or oil
acrylic onto oil will crack over time , unless maybe you are painting onto a perfectly dry, very lean layer of oil that is used for primer or something.. but i see no point to painting this way
Check out the link to see Dorman in action. Near the bottom is a minute or two long video. I can't tell how much is oil and how much is acrylic and markers but apparently he's been doing this technique for a while.
I use a glass palette too and once oil has semi-dried it still needs a fair bit of bodyweight and a sharp edge to shift. I also remember using a fairly polished metal plate as a palette thinking, "right, this will clean up easily", it doesn't..
I'm not saying it's "archival" (a relative term surely?) but I'd expect sensibly applied oil on glass, plastic or metal to still be here long after I'm not.
If it outlives me, I'm cool.
Last edited by Flake; August 14th, 2008 at 09:58 AM.
Here's what Golden Paints has to say about acrylics over oil:
"Overpainting artist oils with artist acrylics is definitely bad practice..."
They also have some good info on acrylic gesso and oil paint:
If you don't bother to read the instructions, you shouldn't be teaching them.
Most conservators still recommend not painting oil over an acrylic layer or ground if you intend on the painting lasting for more than a 100 years. Oil paints don't bond the same way with acrylic grounds as they do with oil grounds. If an artists has any interest in proper material procedure, they will go with what's time tested and paint oil paints on an oil ground.
What if it's just a thin coat of acrylics over the gesso (chalky surface is retained)? There shouldn't be a problem then should there?
If you make the layer of acrylic too thin then you run into the issue of not having enough acrylic binder to hold the acrylic layer onto the surface (same as using to much turp in oil paint).
Probably the safest thing to do is to mix your tone with acrylic gesso and tone the canvas that way.
Thanks, for the info. I'll see if I can find anything.
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