LUKAS mediums for oil painting can affect several properties – drying time, consistency, fluidity – at once and optimize them for the desired use. We recommend only using one of the mediums per application of paints so no undesirable impairment of the product properties occurs. Also, classical oil colors cannot be processed with water; therefore special solvents such as turpentine and turpentine replacement are needed to dissolve and dilute oil paints.