handhillsrancher wrote:
Greetings,
While attempting to level the joint between the glued on oak edging
and the plywood counter top, I accidentally sanded some of the plywood
and created subtle undulations that follow the different grains on the
plywood. How flat does it have to be or what can I use to fill these '
voids ' ?


It must be very flat. No voids. Although you can get away
with having voids under the laminate, if you should drop
anything on that particular spot, then you will have a cracked
laminate countertop. Voids are easy to fill with rock hard
water putty. Overfill, then lightly hand sand until flat.

--
Robert Allison
Rimshot, Inc.
Georgetown, TX