All I can find on the internet is someone said to use a "gesso like
substance" for this. What should I use to fill the tear? Also I read that
the touch-up painting should be reversible. It is an oil painting and I
will be using oil paints to touch it up. (But only on the tear portion.) Is
there something I should apply first before painting and/or filling? Or
should I use a special paint?
Unless you are CERTAIN the painting is worthless, get a
professional restorer to do this or learn to accept the repair.
You can screw up a much larger area of the painting with an
amateur repair attempt.
Tsu Dho Nimh
If we are what we eat, I'm fast, cheap and easy