The two panels to the left are the panels I used to test the resistance of each finish to acetone. The top is the panel finished with four coats of Fuhr 355 and has had about 3 days to set. The bottom is a panel finished with four coat of ML Campbell Ultrastar and had been sit in my shop for about 4 months.

After wiping the top panel with pure acetone and flooding the surface the only noticeable difference was in the sheen. It appeared to be "dull". After wiping the bottom panel with pure acetone and flooding the surface the difference was verynoticeable. The finish was gone. . .

The photo to the left shows the remaining residue on the bottom panel of the finish. It also shows the finish intact on the upper panel.

I actually scratched the film finish on the upper panel to prove that the film was still there. When I scratched the bottom panel, I could feel that I was scratching the bare wood and that no film remained. . .

The next thing I did was to try and "bring back the finish". I waxed the panel with the Fuhr and buffed it out to a nice sheen. The ML Campbell panel did nothing because I was actually waxing the stain wood. This was a pretty impressive test showing for Fuhr International 355. . .