I was just laying the last top coat on some pine with Minwax Polycylic
Satin. I shook the can first, then brushed on the coat. As expected
the first half of a 7 ft board dried with a satin (dull) look and at
about the middle began to slowly turn to a glossy finish as the board
was completed. I got the impression that the glossy stuff rises in
the can and the dull stuff sinks and you have constantly stir/shake up
I buffed the entire board with a scouring pad by hand to lay down a
new coat. OK, so now I'm sweating.
I got the bright idea to used the scouring pad on my orbital sander
and just stand there moving it along while drinking my coffee. The
mixed finish coat is now relatively evened out to a satiny finish and
to hell with that re-coat. And this time, I'm not sweating.
Just thought I would pass this on.