We started our kitchen renovation by pulling up the old linoleum (1920's)which left a black tar paper type layer underneath which is a thick, I'm guessing adhesive, that doesn't want to come off the wood floors. I would like to keep the wood flooring, but how do I get the adhesive stuff off? We've tried all sorts of chemicals (turpentine, mineral spirits, 222, etc.) all to no avail. The only thing that seems to work somewhat is a mixture of mineral spirits and TSP. This is taking a VERY long time. So far 3 hours in a small area (3' X 5') and it still is not clean. Any suggestions?