Signing back of oil painting with acrylic paint?ApproveRejectUn-ApproveSubscribeUn-Unsubscribe
Question asked 2022-08-10 15:40:18 ...
Most recent comment 2024-01-12 01:32:03
Studio Tools and Tips
Grounds / Priming
Oil Paint
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Art Conservation Topics
Acrylic
I want to use a fluid acrylic paint to sign the back of oil paintings on linen and cotton canvas. I want to first paint a patch of fluid matte medium (I use Golden) or GAC on the unprimed back of the canvas, so that the brush will flow. My question is, could this cause the canvas to buckle or shrink unevenly in the long term? It is a patch about 1" x 2". I hope it would also prevent the fluid acrylic color from penetrating to the front of the paintngs. Or does this method present any other archival risks to the paintings? Thanks!
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Moderator Answer
(brian baade)
Anything of measurable thickness will eventually telegraph
topographically through the surface.
This is just physics. If the layer is very thin and the signature thin as well,
it is probably no issue. However, if the painting sized with an acrylic dispersion
and not animal skin glue, you can forgo the isolation layer and just sign the
work in thin acrylic dispersion paint.
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