Argh! I started putting eyelets on the back of my paintings and the paint started to flake off! I don’t know why, but I think because it’s a different type of canvas. So I repainted the patches where it came off. Then I had the ‘brilliant’ idea to varnish it.
First get the top off the varnish bottle. It’s one of those push down and twist types. That took half an hour. Then paint it on. But one of my hairs fell on it! I tried to lift off the hair and the paint flaked again. So, a few more dabs of paint mixed in with the varnish. It was due in today. It might not get there! And I’m left with gummy hands.
Mallaband-Brown 
Varnish is a pain. Those push down and turn bottle tops are annoying then the varnish takes for-ev-er- to dry and the smell is so strong it can make you dizzy. There are alternatives to varnish but I don’t know what kind of paint you used or why it flaked off.
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It’s acrylic paint on a black canvas. It doesn’t seem to be adhering to the canvas. In hoping the varnish will hold it together….
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I wonder if the black primer is oil based.
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I don’t know. Its a shop bought canvas and I’ve never had a problem before with them. 😢
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