Marine supply is great advice. Z-spar Captians varnish is good. Use a tounge oil varnish and add penetrol a product made by Flood. Sand first with 180 grit vacuum dust off and go. ... View related article.
First wash walls to get any wax [pledge] off. Prime with oil base to prevent tannin,[coffee stain appearance] i like zinzers Cover Stain , smells bad but it goes away fast. when primer is dry you can see nail holes and seams. Fill holes and caulk seams, paint 2 coats finish .If nail holes are small just use Dap #33 glazing 1/2 pint will do room put on and rub smooth. ... View related article.