Wayne
It is very hard to find... shelf life is fairly short and many retailers do not like that idea...
A substitute can be made from 1 part Watco oil, 1 part spar varnish and 1 part paint thinner. Mix the oil and varnish first and then add thinner until it is quite watery, but no more than 1 part. Some varnishes are thicker than others, that is why the inexactitude.
art
