Dear Moderator,
I was inquiring about the ratio of stand oil to solvent. The first way I paint is in a thin realistic manner. I was going to add a stand oil medium (25% oil 75%solvent plus cobalt drier 0.5%, calcium drier 1%, zirconium drier 1%) in the underpainting stage, and then with the final layer add a medium to the paint of 35% stand oil plus drier. Is this roughly correct for oil ratios? The second way I paint is a thick fluid impasto, painted in one layer. What ratio of oil to solvent would be appropriate (would it be 35% stand oil plus driers)?
regards Sam
there shouldnt be a specific ratio of right or wrong, the maximum you can dilute it is the limit the oil still crosslink to a film. if you dilute it too much, it doesnt form a film, and this ratio you will be able to observe toward light from its reflection. if you do this test, you will know the limit.
but why you want even add oil in your initial layer? it shall be solvent only, otherwise it will soon be very fat when you build up layers.
also, i donot even think it is a good idea to use stand oil for earlier layers, as the stand oil doesnt sink into beneath layer and result then remains underbond. so use regular linseed oil instead and in the later layer you can use stand oil.
I was wanting to add stand oil as a medium in the intial layer, as I thought the paint layer might be underbound. Also the stand oil yellows less than the linseed oil. Thanks for the advice of not using any medium initially, only solvent.
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