I have completed several oil paintings on paper and wouuld like to mount/adhere them to more substantial grounds such as canvas or panels. Does anyone know the best process to accomplish this?
How thick is your paper?
Since it's on paper, you probably want to frame it under glass? If you brought it to a qualified framer, they would tape it to a backing so if it ever had to be removed it can be done easily. Then it would be framed under glass, probably with a matt. They would probably use an acid free backing board of some type.
But it your intentions is to leave it exposed and possibly framed, I would just use spray mount and adhere it to masonite (hardboard). Lightly spray both surfaces and press them together. I usually lightly sand masonite a bit first to get rid of any gloss. Cheapest place for spray mount is Wallmart in the crafts section.
The other poster asked about the thickness of the paper. I assume you gessoed the surface first before painting. Since masonite is brown you have to make sure your paper is thick enough for no show through or paint the backing board white.
Normally you should have done the other way around.
I would not recommend to fix the painted paper on a rigid board either canvas or wood because both materials (paper and board) with the cold and warm temperatures will change their dimensions in a different way and the paper may crack.
Just cover with glass and frame the paper, that will be nice and safer.
That is an interesting meter you bring to the forum. From point of view as a restorer the best way to do this is to stick it on a panel.
caricatures from photo