RE: SANDBLASTERS

["Jane & Arden Bedell" <bedel003@tc.umn.edu>]

A pressure sandblaster includes a pressurized tank, that looks just like an
air tank on your compressor except that it has a removable cap where you add
sand.  Instead of high velocity air creating a low pressure zone that pulls
sand up a tube, a pressure blaster presssurizes the tank with sand in it and
feeds the sand into the air stream through a valve.  The difference in
performance is that it takes a lot less air volume to entrain the sand into
the air-stream, and the sand/air mixture is much more uniform.

--Arden