Boiled or raw linseed oil?

Linseed oil is derived from flax seeds and has been used to treat wood for thousands of years. The boiled variety is often preferred now because it has a much shorter drying time than the raw linseed. Another effect we have noticed is that when it is mixed with red ochre pigment for colouring woodwork, the boiled linseed provides a much darker, deeper red. We are using this in our Roman dining-room because it provides a great colour match to the red ochre used in the frescos on the walls.

red ochre on timbers and walls

darker boiled linseed matches fresco red – both red ochre

boiled vs raw

darker boiled linseed, lighter raw