Here's my $.02:
1) Aluminum is crappy material for saw tables, planer beds, etc. It
has much more "tooth" than cast iron and, therefore. there is more
friction to overcome when pushing something (like a piece of wood)
over it. It is used because it is CHEAPER not because it is better.
2) Alum. can (as has been pointed out) cause discoloration of the wood
as it it softer than cast iron and can actually be transfered to the
3) Anodizing is only a temporary solution since the coating will wear
4) Wax does not cause fish eye. Silicone causes fish eye. Period.
5) "Good quality" pastewax does not contain silicone.
6) "Good quality" pastewax, applied to a metal table, allowed to "dry"
for a few min. and buffed out with a clean rag, will not transfer to
7) You can wax your tables (cast iron, aluminum, PL, wood...whatever)
with impunity as long as you follow step six.
How do I know all of this? Because I have been regularly waxing my
tables (with TreWax) for over 30 years and I have never had any
problems. This might be a good time to point out that: 1) I have also
been using lacquer finishes for 30 years and that 2) because I forbid
anything containing silicone in my shop I have never had a problem
with fish eye.
"It's easy when you know how..."