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Subject: A few questions about oils

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BecArt
Posts:71
12/01/2007 12:42 PM Alert 
I paint a lot with oil paint. And I was wondering if it would be ok to paint with acrylics on top of a dry oil painting? and if so, how dry should the oils be? I would just experiment on my own, but I don't want to waste a canvas because they cost so much. And how about varnishing oil paintings, how necessary is it? And what would you recommend for a good varnish?
one who sees

Posts:508
12/01/2007 9:41 PM Alert 
noooooooooo neva neva! you can paint acrylic beneath oils but neva paint acrylic on top.....even when oils are dry...nope!...
i dont varnish mine...and the least amt of time you need to permit them to cure, is six months....a year is best but it depends on how you paint.......there are a lot of very good varnish products out now..winsor and newton has quite a few products out that wont yellow after years, but look them up...i cant speak for any from experience myself, i do glaze work which puts a sheen on the paintings anyways.....which i love, but it makes the painting appear nearly as though it were varnished......
~I am always doing what I cannot do yet, in order to learn how to do it~
Vincent Van Gogh

www.bettyannlemist.com
MTillie

Posts:36
12/02/2007 10:59 AM Alert 
No, not acrylics on top of oil, but you can go the other way around. Now in defense of the practice, I did years ago paint over oil with acrylic--and the painting is still not cracking off. But I did it on canvas board and the acrylic painting is over a very thin oil painting. I did the painting in the 1980s---so far it remains.
Peggy

Posts:111
12/13/2007 10:49 PM Alert 

If you want your paintings to last for a really long time, then use Damar Varnish.  It does not yellow with time and holds up well to cleaning.  Varnishing a painting allows you to clean it later.  Paintings collect dust and such(things like nicotine) and if they are varnished they can be cleaned and repaired.  If they are really dirty then you can use a retouch varnish to remove the old varnish and then touch up anything that needs it before you varnish again.  My instructor says that oils need to dry between 12 to 18 months before they are varnished.  I usually write on the back when I finished a painting and when it needs to come back for varnish.  Then if I sell a piece the info is there to remind the new owner to bring it back free of charge for varnishing.  Hope this helps.

Peggy
For I know the plans I have for you, says the Lord, plans for a hope and a future to bring you to an expected end. Jeremiah 29:11
BecArt
Posts:71
12/15/2007 11:17 AM Alert 
Yes! Thank you, you have all helped me a lot! I'm so glad I asked before I tried!
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Forums > Join the Discussion > Artists' Lounge > A few questions about oils


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