What are Drying Oils?
Oils are used to modify the consistency, gloss and drying time of colour. Using oils can prevent over thinning which may happen when using solvents. They are also particularly useful in maintaining flexibility of paint films especially when working fat over lean.
How do the types of linseed oil differ?
Cold Pressed Linseed Oil will dry slightly quicker than Refined Linseed Oil and may have better flow with some colours. Stand Oil is paler and thicker than refined and is the slowest drying linseed oil. Drying Linseed Oil is the fastest drying linseed oil.
How do Poppy and Safflower oil differ from traditional Linseed oil as mediums?
Poppy and safflower are classed as semi drying oils, whilst linseed is a drying oil. Semi drying oils are paler than linseed but dry more slowly. Poppy oil is supplied as Drying Poppy Oil, which has added driers to it. This provides a pale medium for use with whites and blues but with a comparable drying rate to linseed to help avoid cracking.
What is the best equivalent to the discontinued Bleached Linseed Oil?
Drying Poppy Oil has the same properties as Bleached Linseed Oil i.e. it is quick drying and its pale colour makes it suitable for whites and pale colours. It is also effective in increasing the gloss & transparency of oil colours and is non-yellowing.