Additives are essential to fully enjoy the qualities of extra-fine oil-based paint.
Thinners enable you to dissolve the pastes and thus make it easier to work with colors. It is preferable to use spirits during the abbozzo or sketch phase in order for drying to take place more quickly and to respect the «thick on thin» rule.
Oils, of vegetable origin, play the part of a binder which combines with pigment and forms the protection for the finish.
Mediums ensure the work’s cohesion to canvas, modifies the gloss, allows highlighting particular areas, facilitates impasto techniques and can modify the drying time (especially valuable when working Plein Air).
Driers speed up «drying» (more accurately, oil paint doesn’t dry, it hardens).
Varnishes change the final appearance of the painting prior to any preservation of the work.