[Cob] Linseed oil again

[jane at kirstinelund.dk]

Just read some information about linseed oil from a local manufacturer.

First: The interesting thing about linseed oil is not how fast it dries,
but how well it hardens. It is the hardening that makes a protective
surface.

Second: It is true (like i was told by north swedish wood nerds) that
linseed oil made from flax grown in cool climates are the best quality.
The cold makes the plant produce more of the acis which makes the oil
harden. It does not have to be northern scandinavia or similar zones,
however. A cool temperate climate like ours in Denmark is sufficient.

Third: According to these people the mecanically pressed oil is clearly of
the best quality (contrary to what someone wrote sometime ago to the
list). I guess the chemical additives to cooked linseed oil somehow makes
up for the (possible) lesser quality. And maybe mecanically pressed
linseed oil really HAS to be grown in cool climates to be any good at
hardening.

I can give you the link, but it won't be any good to most of you as the
page is in danish:

http://www.jyno.dk/

And a thought: Does anyone know what happens if you mix lime and linseed
oil to make a protective surface? Will it give a double protection or will
the two components somehow negate each other? As soap is made from basic
liquid and fat I have the idea that the strongly basic lime and the oil
may turn itself into something soap-like, but now people write about soap
as surface protection, so maybe that would be a good thing.

Jane