While the last is true, the previous isn't or is at least misleading.
Applying more shellac makes a thicker film--how could it not? The
material doesn't just disappear and the volume applied is still larger
whether the two coats "fuse" or one lays on top of the other.
The problem of treating both sides of a piece the same isn't owing to
the finish that "can shrink over time" but that the finish slows
(doesn't stop, merely slows) the rate of moisture exchange to/from the
piece. Hence, more finish on one side leads to preferential moisture
exchange on the other. This differential in moisture is the primary
cause of the problems when one side is finished and another isn't.
A couple pictures are posted on the binaries woodworking group of
the finished project.
I took your advice about using a cotton cloth pad to apply the shellac
and the cut to 1 lb. The top has over a dozen light
I used an unwaxed blonde shellac for the top surface. Used 320 grit
after the first couple coats where I used 220 grit initially. Hand
sanded lightly between coats. This is my most attractive finish
Thank you all for your advice,
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