Standard
Grades Used: 1014,
1420 and 2040
Click
here for specifications
or here for packaging.
Overview:
Vibratory finishing and tumbling are mass finishing processes
where the abrasive and absorbent characteristics are generally
both desirable. Corncob grit polishes and deburs parts
and at the same time cleans and dries parts. Oils and
other liquids from wet mass finishing processes are absorbed.
Grade selection is typically based upon the finished surface
profile desired and the diameter of any holes or cavities
in the part. The selected grade should not contain particles
that would lodge in part openings.
Grit
blasting with corncob particles is accomplished with the
same equipment as used for sand blasting. Because corncob
grit is considerably less aggressive than sand, it is
often categorized as a "soft abrasive" (corncob
grit has a 4.5 Mohs hardness). Corncob grit does not etch
glass or foul bearings and is frequently used to clean
electric motors and machinery with hydraulic cylinders.
Other applications include: smoke damage and residue clean-up;
mold cleaning; plant maintenance; and loose and flaking
paint removal. It is ideal for wood, aluminum and fiberglass
substrates.
Unlike
mass finishing processes, blasting with corncob grit is
not as predictable. Each job tends to have unique characteristics
which do not allow for estimating precise media usage
or outcomes. We recommend testing a couple of grades to
determine which offers the best performance. We will box
and ship 50-pound bags anywhere in the USA for $30.00
per bag. Small samples are available at no charge.
Remember
to flush any other media from your equipment before performing
the test.
hazardous waste clean-up and absorbent socks for plant
maintenance applications.
pellets. The pellets are then reprocessed into various
particle sizes.
