Re: varnishing oil paintings

In Reply to: varnishing oil paintings posted by Mary on 08/30/00 at 11:31 AM:

Mary, congratulations on your success.

The retouch varnish you are using is quite safe because it's diluted damar varnish. That's why there's so little sheen .. it's diluted too much to make a shiny surface.

That shiny surface completely seals the surface and, being a brittle film when dried, the varnish cracks as the underlying paint looses its vlatile components and settles down to the solid (between 30% to 60% of the paint). That's just the nature of the paint and there's no good way around it.

If you paint in a thin manner, you can cut the drying time in half, but any pastose paint will take a while before it slows down evacuating its volatile elements.
 
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