Re: Tung Oil question

Hi Keith

Tung oil will cure in air, it is slow curing, there is pure tung oil that is "heat treated" to speed up the curing, also some times thinners and dryers are added to have the oil penetrate more and cure quicker.

The problem as I see it is the oil gets aired every time we open up the can it is in, and is curing while it sits in that can, and is cured if we take to long before using it all.

Also it's curing, not drying, so adding a thinner to it will not undo the curing, if it gets to jell, dump it.

The only way I know of how to make the oil useable longer, is, as soon as you get your new can of tung oil, divide it into small containers, filled to the brim, and tightly closed, then store in a cool place.

Then use a small can, (I use one of those 2 ounce CA glue bottles) also keeping the can in use closed, does help some, even so the air already in the can will be curing the oil, don't shake the can, like mixing, there is nothing to mix except oil and air, not a good idea, and keep it cool if possible.

Here's a link to some more info from Lee Valley

http://www.leevalley.com/wood/page.aspx?c=1&p=20049&cat=1,190,42942

Have fun and take care
Leo Van Der Loo

Keith Young wrote: 
Hi

I have had several cans of Tung oil. The last time I purchased a very small can

Because

I never seem to be able to use very much of it as it turns to jell. I was assured the last time I purchased it that it contained no additives or dryers and it was natural !

Advice Please

Keith
Newfoundland 



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