Application of varnish
I have a painting that is about 1 year old that I would like to varnish. I would normally let it be but there are a few dark areas that have sunk in. How does one clean a picture before varnish? I read the post on cleaning before applying new paint to an old picture, is it the same?
Also, I plan to use some damar that I have had for some time (unopened) but having never varnished am unsure how to apply it.
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