I agree that real varnish is a great product, but if you ever have to refinish it again, it becomes a real job...resanding etc. With tung oil, it will eventually show some drying out, but you simply do a new coat of oil and it is as good as new. I like the tung oil since it is easier, more convenient and much more flexible than varnish. Each spring when my truck comes out of storage it gets a new wax job and new tongue oil applied
Craig
46trucker