I have worked with this stuff last summer. If you make it thin enough to use for wood stabilization then the finish is inadequate. A separate application with a thicker solution is necessary.

A word of warning...the plexiglass does not want to dissolve nicely. I put a bunch of cut up plexi into a 2 gallon jar and filled it with acetone. Then I stirred & stirred & stirred etc. Not much dissolved. So I let it set for a couple of days. What I ended up with was a big blob of gooey plexiglass on the bottom of the glass jar. I never did get it to dissolve. I think what I did wrong was to make the pieces to small. I also have used the Acryloid B72 which is nothing more than small pellets of acrylic. Thats the stuff I used for stabilization. I stirred it constanly until it dissolved. It took about 1 hour. Next time I will use a long paint mixer paddle checked up into a drill. It is such a pain to dissolve. It does add a lot of strength to the wood but does not fill the pores very well. BTW, I did not try it as a finish, just for stabilization. For stabilizing wood that gives good pore filling, strength and a great finish the Loctite Resinol 90C is the best. But $120 per gallon is a bit much and its very hard to get. Mine is all gone now.

That link also had some very good articles on epoxy, oil and wax finishes.
Thanks a bunch for the link!