What quantity of Liquin versus solvent should be added to the colour?
Adding Liquin will make colour/a layer fatter. Adding solvent will make colour/a layer leaner. Therefore only the lower layers should contain solvent and the upper layers should contain increasing amounts of Liquin. Because Liquin is a medium and not a solvent there is no upper limit to its ratio with oil colour, however it is recommended that at high proportions the layers are applied as finely as possible. For further information on Hints, Tips & Techniques for Oil click here.