Lightly sanded wing surfaces for epoxy varnish. And applied the 2nd coat of epoxy varnish to the R/H wing. Also applied first coat of epoxy varnish to wood ribs in horizontal stabilizer. And applied 3 coats of varnish to the lower surfaces of floorboards. Trimmed excess material from bonded on doubler added to butt ribs. Then sanded butt ribs for epoxy varnish. And varnish butt ribs.