Walnut Shell & Corncob are soft blasting media processed from natural hardfibers of walnut or corn. The major advantage is that fragile components can be cleaned without marking or etching the components' blasted surfaces.

They are suitable for cleaning autoMobile super chargers and turbine blades, removing unwanted flash residue produced during the moulding process from semi-conductor integrated circuit package lead frames without damaging or pitting the package surface. They are also used in power generation stations, turbine overhaul factories and the aerospace industry.

Besides these, walnut Shell is widely used for cleaning moulds, motor armatures and motor drives prior to rewinding. Corncob is very light, soft and absorbent. It can be used for cleaning delicate surfaces or brass/brick/stone/wood, engines and engine components as well as mass finishing processes for drying and absorbing water, oil or wax from processed parts and also for fine polishing or brightening of parts.

Item	Walnut Shell	Corncob
Density	1.28g/cc	1.15g/cc
Hardness	2.5-3.0 MOH	2.0-2.5 MOH
Fiber Content	90.4	90.9
Water Content	8.7	8.7
PH	3-6	3-6
Available sizes	Grit No. Size micron Grit No. Size micron 5 5000 ~ 4000 24 800 ~630 6 4000 ~ 3150 30 600 ~ 560 8 2800 ~ 2360 36 530 ~ 450 10 2000 ~ 1800 46 425 ~ 355 12 2500 ~ 1700 60 315 ~ 250 14 1400 ~ 1250 80 212 ~ 180 16 1180 ~ 1060 100 170 ~ 132 20 950 ~ 850 120 125 ~ 100	Grit No. Size micron Grit No. Size micron 5 5000 ~ 4000 16 1180 ~ 1060 6 4000 ~ 3150 20 950 ~ 850 8 2800 ~ 2360 24 800 ~ 630 10 2000 ~ 1800 30 600 ~ 560 12 2500 ~ 1700 36 530 ~ 450 14 1400 ~ 1250 46 425 ~ 355 Othe size also available upon request.