[VAC] Re: cabinet finish adhesion of polyurethanes

["Carol and Oliver Filippi" <ofilippi@xxxxxxxxxxxxx>]

Jim,

Polyurethane finishes have a reputation for poor adhesion.  But don't
despair.  This is only a potential problem when you coat an old aged
polyurethane finish with a fresh coat.  This is easily solved by careful
sanding - typically with a coarser grit abrasive than one would ordinarily
use with conventional finishes.  if you are sanding wood, be sure to sand
with the grain so the scratches don't show.

Adhesion to a recently coated polyurethane finish (a second or third coat)
is typically not a problem -  if the prior coat is less than a couple of
weeks old.

Oliver Filippi