Re: High gloss piano finish for a newbee
Make sure you test that brushing laquer on some of the Rustoleum black coat first. If the Rustoleum is truly an enamel, the lacquer will bubble and lift it. Beings it is a brushed on oil-based coating, I doubt you will be able to use lacquer over it. You may have to go to a water soluble clear coating (i.e water-lox, etc).
Check the rustoleum can and see if it labels toluene, mineral spirits, and/or xylene as one of the solvents. If so, I would be very leery about using lacquer over it. If the thinners are MEK (methyl-ethyl-ketone), MIK (methyl-isobutyl-ketone), or acetone without the others, you may be okay, but test it first.
The Deft Clear Wood Finish spray cans you see at Lowe's, etc are actually lacquer finishes.
For future ref, most of the super high gloss furniture finishes are lacquer or French polished shellac, although some are now acrylics (plastic). You can put oil-based over lacquer, but the thinners in the lacquer will soften and bubble an oil-based undercoat unless it is very old (fully oxidized) or baked on.
Hope this helps
PS if you decide to strip it down and refinish, get some lacquer-based sanding primer from an automotive store, and build it up until you can sand it smooth with a sanding block. Spray black lacquer over that and then clear coat (should all be available in spray cans).
Last edited by Gofor; 09-13-2008 at 09:12 PM.
Practicing at practical wood working