I painted directly on linen that I sized with three coats of rabbitskin glue, to keep that wonderful umber colour of the raw canvas. It also doesn't make me anxious about covering the whole canvas asap.
Following some threads found here, I just finished to size new canvases with acrylic size made from PVA glue, but I had a hard time stretching it.
I am trying them next week and let you know!
I.
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