I purchased a bottle of Japan dryer about 12 - 15 years ago. Just now I am trying it in a solution of linseed oil, spar varnish and turpentine. The solution will not set and harden properly. Its taken over a month for the last coat to set and it is still a bit sticky to the touch.
I overdosed a solution to see if I could get it to solidify and it is still liquid after a few days.
The question is does Japan dryer degrade over time? Based on the way the chemical reaction is supposed to act I hadn't thought so.
