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Originally Posted by Thomasin Dewhurst
(. . . pre-primed). Could I used rabbit skin glue for that, or is it different for already painted paintings?
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Pre-primed canvas or gluing finished painting to a panel, use acrylic gels, vinyl-acrylic adhesives, PVA or whatever turns your crank.
Gluing raw canvas to a wooden panel, you first tack the canvas to the panel, then saturate it with RSG
from the front, this works well, and nothing will "transfer" to the canvas from the wood (?) because it's isolated by the glue. You can't do this with a pre-primed canvas or a finished painting, and while it is theoretically possible to use RSG for that pupose, it isn't the easiest stuff to use this way, and is not an appropriate adhesive to use over aluminum, or sealed wood.
Julie, just curious . . . what elements do you perceive "transfer" from wood to canvas, permeating an adhesive layer ? I know some plywood glues contain formaldehyde and other volatiles which may migrate or "off-gas", possibly reacting with other materials, but any solid woods suitable for the purpose (properly cured cabinet grades)are pretty much inert. Poplar panels were preferred from pre-Renaissance times by reason of several advantages that species presents for this application (broad planks, machineability, fine grain, low resin content, and optimal acceptance of glues and paint coatings.
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