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Sand(other media) blasting


#1
This was Arm & Hammer baking soda so I don't think it was
anthing    special.  They were able to blast the paint off pop
cans without    removing any metal.

This same technique is used by dentists for cleaning your teeth.
Their machine uses a 2 jet nozzle, 1 for baking soda (Arm &
Hammer) & 1 for water. My dentist said it used about 35# air
pressure. His was pretty pricey, $2000.00. I’ll bet we could do
it for less. How about the air earaser?

Dave


#2

Are you sure that it was baking soda, not washing soda, a much
more potent chemical.


#3

Marion said,

 Are you sure that it was baking soda, not washing soda, a
much more potent chemical.

Absolutely, it’s used inside your mouth, so it must be something
harmless if it’s swallowed. The baking soda is used as an
abrasive, not as a chemical. A little tends to splatter about
your face after it rebounds from your teeth. A very nic e way to
have your teeth cleaned/polished.

Dave