Drying time for extra acrylic gesso primer to canvasApproveRejectUn-ApproveSubscribeUn-Unsubscribe
Question asked 2019-09-18 02:58:56 ...
Most recent comment 2019-09-18 22:50:41
Grounds / Priming
How long should you wait between extra applications of this gesso before applying the next coat?
On the container it says to let dry between coats, but I use it to fill in the weave of the canvas to give a smoother surface to apply oil paint on. The canvases are already triple primed by the manufacturer but weave of canvas still obvious, which I dislike. When I apply extra gesso I use a bit of pressure to try and drive it into the weave. I can see/feel when the outer part is dry but can't really know when the deepest part is properly dry.
Does it really matter provided the outer part is dry? JustPaint.org state that you should wait 3 days after applying the final acrylic gesso layer before you apply oil paint. Should I wait the same time between coats when applying extra gesso, for reasons given above?
Thanks in advance
Answers and Comments
Between coats, it's sufficient to let it dry to the touch with no wet or soft material beneath a skin. The additional time before painting is to allow the film to achieve full integrity, as coalescents leave the dry primer and all the acrylic microparticles bond together. One additional piece of advice for top-coating factory-primed canvas: some cheaper canvases have, in the past, shipped with a release agent on the primed side that prevents sticking in manufacture, but which can interfere with adhesion. I don't know if it's still a problem with any current manufacturers, but if you are priming over a generic canvas that you haven't used before, or a brand you don't recognize, it's a good idea to wipe it down with a little denatured alcohol on a rag to remove any residue that might be present.
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