Cob: Linseed Oil

[Michael Wye]

In the UK linseed oil is usually supplied "raw" or "boiled".
Raw linseed oil doesn't dry particularly quickly ( certainly not within 3-5
days) which is why the "Boiled" version exists.
Raw linseed oil is filtered linseed oil whereas Boiled linseed oil contains
chemicals to accelerate the setting
There's an excellent summary in this article link
www.violinvarnish.com/linseed.htm
that tells you everything you ever wanted or didn't want to know about
linseed oil.
Raw linseed oil is usually available in Agricultural Merchants selling to
farmers and is relatively cheap in the UK (£12 per 5 litres = $15/gallon)
hope this helps,
Mike
Mike Wye & Associates,
Natural Building & Decorating Products
www.mikewye.co.uk
01409-281644
sales at mikewye.co.uk