Join Date: May 2016
Location: Stockholm, Sweden
Staple once on one side and then stretch and staple the opposite side, once. Then do the other sides. Thereafter complete stapling. To stretch the canvas, hammer in the splices in the corners.
Linen, however, slackens and stretches depending on humidity. Many old paintings get cracks after the owners have stretched them with the splices. But then humidity changes and it stretches even more, causing cracks in the paint layer. Cotton is more elastic. I suppose rayon is, too. It is easier to stretch a cotton canvas. But if one wants coarse fabric, or is going to make a really big painting, then one should choose linen, I suppose. I don't know why so many prefer linen. Cotton does not experience this spontaneous stretching and slackening. Of course, linen lasts longer, but that can't be the reason.
Had you used cotton, then the canvas would remain largely unaffected by the water-soluble primer. But I suppose the water content affects the linen canvas and causes it to buckle.
Last edited by M Winther; 11-11-2017 at 02:42 PM.