Can different oil colour media be mixed?
All types of oil colours can be safely intermixed with two exceptions; I] heavy underpainting in Oilbar is not recommended beneath oil or alkyd colour. Thick Oilbar films are likely to be too flexible due to the wax content. Ii] thin alkyd films are not recommended on top of oil or Oilbar films. Thin alkyd films may be too inflexible over the relatively more flexible oil or Oilbar films. In both cases the ‘flexible over inflexible’ [fat over lean] oil painting rule is being broken. If painting with Artisan we recommend using it exclusively to maintain its water mixability and prevent any difficulties in keeping the fat over lean rule.
