What are the drying agents in boiled Linseed oil ?

[JDarvall]

Curious what they add to Raw linseed oil to make it boiled.

Hoping its something I can get myself. Maybe a solution for me in that.

Cause, I've got a fair bit of raw stuff that takes too long too dry, and probably wont use otherwise.

Wondering maybe also if there's a drying agent I can add myself then maybe I can speed up drying time further in boiled stuff as well by spiking it.

any ideas ?

kindly
Jake

[Big Shed]

Haymes Paint: Terebine

If you Google "Terebine", you will find more info, including some on this forum.

[Claw Hama]

Yep, I use Feast Watson in my paints, home brew Danish Oil etc I didn't realise Haymes had it as well. Will use Haymes now.

[JDarvall]

ta.

By chance have you noticed any discernable differences in a Boiled linseed oil finish over a raw linseed oil with this Terebine added ?

Just a bit worried.

From just a google I got ....

Driers are oil soluble metal salts of organic acids

....makes me think that there maybe some kind of cheap alternative that does the same thing.

[ubeaut]

Terebine used to contain metalic driers which can be extremely harmful to health. Not sure if it still does

BOL has a number of aditives to make it dry most doesn't contain terebine. Throw some cheap polyurethane into the oil will make it dry quicker so will adding turps and a number of other solvents.

Hope this if some help

Cheers - Neil

[Big Shed]

Neil, yes it is a mix of metallic driers, no different to what is used in any solvent based enamel, or indeed polyurethane varnishes, to make them dry.

These days it does not contain Lead Naphthanate, as that is now illegal to use.

Most manufacturers still use the term Terebine, but it isn't the Terebine of old.

http://www.haymespaint.com.au/upfile..._msds/ms_t.pdf

[Claw Hama]

Details on the Feast Watson Terabine:

A lead free, resin based, drier. Designed to be mixed into paint, oils and varnishes to improve drying. Mix ratio is 1:16 or 250mls per 4L of paint, oil or varnish.

Drying times for Feast Watson products are based on a temperature of 25°C and 50% relative humidity. The colder or more humid it is the longer it will take products to dry. It is best to apply Feast Watson products when temperatures are between 10°C and 30°C. Feast Watson Terebine is ideal for use when applying products at the lower end of this spectrum. Do not apply products if the temperature is likely to drop below 10°C during application, or within 4 hours of application.

Terebine is not suitable for use in moisture cure polyurethanes, two-pack or water based systems.

[Wizened of Oz]

Terebine used to contain metalic driers which can be extremely harmful to health. Not sure if it still does

Cheers - Neil

Terebine is now a Schedule 5 poison, "Caution".
Or, to put it another way, don't drink it, don't swim in it. Probably no more dangerous than After Shave.
And it's almost entirely a mixture of Turps and Kerosine in the can with just a tiny amount of active ingredient.