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Old 02-12-2006, 06:52 AM
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goebs goebs is offline
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Unhappy How to correct an acrylic painting

Hello there,

during the working progress of one of my current paintings I've done a mistake. The colour I used have less tranparency then I thought. It occurs that the geometrical figures destroy the character of the painting laying underneath. It is because the colour is to intense, it's an cremy white on a warm, red-orange oriented painting.
Do you have any idea, how can I correct this mistake without overpainting everything? Is it possible to make the figures more transparent?

Thank you for your help
Greetings,
Frank
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Old 02-12-2006, 09:48 AM
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Re: How to correct an acrylic painting

If it's aready dry, (which of course it is) then no. I'm afraid you have to repaint.
As the colour in question is a creamy white I expect this is either T. White mix
or Parchment, these are both very opauque colours. Even a little T.White in a medium can be suprisingly opaque. A damp paper towel will remove this if you realise your error immeadiatly (next time). I would reccommend buying a tube of Zinc white or mixing white, this is more transparent.
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Old 02-12-2006, 10:27 AM
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Re: How to correct an acrylic painting

Depending on the size and complexity of the shape, you could try sanding some of the paint off with a fine sandpaper ........ other than that, Jeff advice is correct ........ but then, that's one of the beauties of Acrylic, it allows overpainting to correct mistakes
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Old 02-12-2006, 04:37 PM
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Re: How to correct an acrylic painting

Mhm, thanks.
Well, I feared overpainting, but I really have to.

It's very helpful for the future, that I have to take Zinc white instead of Titanium white (which one I used) for better transpareny. Thanks a lot, Jeff.
I never thought about it.

Best regards
Frank
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Old 02-13-2006, 06:14 PM
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Re: How to correct an acrylic painting

If the layer you covered doesn't have a lot of detail that needs to be seen, perhaps you can just use a thin glaze (lots of medium) of the color you covered to bring it back. I've done this before.
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Old 02-13-2006, 08:29 PM
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Re: How to correct an acrylic painting

You may need to repaint and then reglaze the area with a lighter/thinner solution.
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Old 02-14-2006, 08:39 AM
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Re: How to correct an acrylic painting

Hi, hope you don't mind I posted here Frank and thanks.
My problem is minor for you all... but I don't want to over work this painting.
I've painted underpaint too dark with Burnt Umber for my tomatoes on canvas which the ref. pic has a very dark background. What colour next to paint to make tomatoes not too dark?
Thank you for your help.
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Old 02-14-2006, 11:09 AM
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Re: How to correct an acrylic painting

I've used a trick in the past...won't necessarily help on this one but might lead to experimentation or future ideas where not wanting to do something over is concerned.

If you spray several coats of an acrylic clear varnish over something done or near done. Let dry of course...then apply a liquid brush on acrylic medium and let dry. Then you can paint into that medium area no problem. Of course paint would want to bead up and resist painting onto the varnish area, but applying the medium allows it.

Now say you don't like something you tried to paint...you can actually take a cloth and using a bit of water and some elbow grease...rub that painted area right off not harming what was sealed with the acrylic spray varnish beneath. Then you can try again or opt not to bother. If on the other hand you do like this addition or the changes...by simply applying another layer of spray varnish you lock that addition into the layers beneath.

Sorta like the 30 plus layers Rembrandt did with mediums, copals or varnishes and suspended areas of paint to produce the penetrating depth and realism in his oils...

just a thought anyway to register and store away for a "someday"....
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Old 02-14-2006, 11:28 AM
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Re: How to correct an acrylic painting

When I make a mistake I just re gesso the area and start the offending area again when dry.
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