Re: Painting with Stand oil and chalk??
Never tried making this and I don't know if it's advisable or not. Stand oil has poor wetting ability so you'd need quite a high proportion of oil to chalk with this to avoid an immovable paste. It should be quite flexible, but also quite fat, probably too fat, and a pale semi transparent cream in colour. Possibly problematic at holding the crispness of brush strokes as well.
Localized areas of very thick dry paint will tend to equalize as much as they're able within the depth of the canvas surface. That is to say, thick lumps on the front will push to the back to make a lump visible from the rear of the canvas. Thus reducing to a degree, impasto effects. If you wish these to remain as protruding as when you first painted them, then the support has to be as unyielding as a solid panel.
insert pithy comment here.