Linseed Oil
Linseed oil comes from the seed of the flax
plant, Linum Usitatissimum, the very same plant whose fibers
are used to make linen. Flax is one of man's oldest
domesticated plants and grows best in the cool, damp climate of
Nortnern Europe.
What is
linseed oil used for?
Before the 15th century, linseed oil was
used a little in easel painting. Linseed oil 's main function
was as a final varnish for paintings. However, linseed oil
dried slowly and often had to be sun-dried.
In the early 15th century, it was discovered
that when mixing linseed oil with a small amount of lead
pigment, linseed oil paint dried much faster and more
evenly.
Linseed oil has since then become the binder
in oil paint. Linseed oil is an excellent drier because it
forms a strong paint film. Moreover, linseed oil is compatible
with most pigments.
How does
linseed oil dry?
Linseed oil dries by oxidation. But once
linseed oil dries, it cannot be reversed or reliquefied without
totally destroying the oil paint film.
How does
Linseed oil come?
Linseed oil comes in different varieties
such as cold-pressed linseed oil (or linseed oil in its purest
form), refined or steam pressed linseed oil, and sun-thickened
linseed oil.
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