Recently got a Grizzly 1023 table saw and was setting it up last
night. Once I had finished cleaning the gunk off the table i noticed
white splotches on the surface. They look like mineral deposits or the
kind of ghosting you might see from water damage in a finish. The
surface is smooth, not pitted. I'd like to know if this is just
cosmetic or perhaps a problem with the casting that could be a problem
later on. The extension wings did not exhibit this flaw. I cleaned the
surface with mineral spirits and a rag. Did same process with several
other tools: bandsaw, jointer, shaper, sander etc and they all look
Thanks for your feedback.
you should be good to go if it's not pitted. Shine it up a bit with
some abrasive pads, and apply a coat of paste wax (with OUT silicone) ,
like SC Johnson's paste wax). You will end up with "cosmetic" blemishes
on the top from normal use, anyway.
Todd Scarola wrote:
On 3 Feb 2004 10:18:09 -0800, email@example.com (Todd Scarola)
it may be signs of the casting not being properly seasoned prior to
machineing. it may be fine as it cures or it may warp as it cures.
american foundries used to fully cure castings before they would
machine the final product but i doubt that the chiwanees foundries
do.cast iron moves as is cures. if you dont wait for it to cure you
can wind up with warped sagging or twisted parts. just one of the
downfalls of the modern global economy IMHO. skeez
They used to throw the castings outside to weather for 6 months to a year.
That allowed relieving of internal stresses which result in movement. They
would then sandblast and mill the final product which would give a cast-iron
table that hopefully would not move.
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