for water mixability Jelly like ("lean") medium for mixing oil colours with water instead of organic solvents such as turpentine or turpentine substitute. Increases gloss and transparency, reduces viscosity; harmonizes drying process; odourless. Mix 2 parts of oil colour and 1 part of medium W gel on a palette, than add water like you want; if necessary add more medium W gel. Painting tools can be cleaned with water. There is no change of the product quality based on the colour change of the raw material alkyd resin. Dosage: 50%. Thinner: Water