wOil Water Mixable Oil Mediums, 4 Ounce Bottles, Set Of 4 wOil Modified Linseed Oil for use in diluting wOil and for making painting mediums and used by many people for cleaning brushes wOil Fast Dry Medium, a little of this mixed with wOil to speed up drying time wOil Gloss Varnish, use as final gloss varnish over wOil Water Mixable Oil Colors. Use after painting has dried (6-12 months). wOil Matte Varnish, use as final matte varnish over wOil Water Mixable Oil Colors. Use after painting has dried (6-12 months). AP non-toxic, great for classrooms