Sandblasting Media Grit Corn Cob Abrasive Polishing

Color: Yellow brown

Material: Corn cob

Shape: Grit

Application: Polishing, blasting

Hardness: Mohs 4.5

Abrasive Grain Sizes: 6#, 8#, 10#, 14#, 16#, 18#, 20#

Advantage: Natural, environment-friendly, renewable

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Product Detail

Application

Corn Cob is derived from the woody portion of the corn cob. It is an all-natural, environmentally-friendly product and is a renewable biomass resource.

Corn cob grit is a free-flowing and environmentally friendly abrasive made from hard cob. When used as a tumbling media, it absorbs oils and dirt while drying parts – all without affecting their surfaces. A safe blasting media, corn cob grit is also used for delicate parts.

Corn cob is one of the more popular medias used by reloaders to polish their brass before reloading. It is tough enough to clean brass that has minor tarnishing yet soft enough not to damage the casings. If the brass being cleaned is heavily tarnished or has not been cleaned in years it would be best to use crushed walnut shell media as it is a harder, more aggressive media that will remove the heavier tarnish better than corn cob media.

Advantages of Corn Cob

1）Sub-angular

2）Biodegradable

3）Renewable

4）Non toxic

5）Gentle on surfaces

6）100% silica free

Corn Cob Specification

Corn cob Specification
Density	1.15g/cc
Hardness	2.0-2.5 MOH
Fiber Content	90.9
Water Content	8.7
PH	5 ~ 7
Available sizes （Other size also available upon request）	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

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Corn Cob Application

• Corn cob is a media used for finishing, tumbling, and blasting.

• Corn cob grit can be used for glasses, buttons, electronic components, automotive parts, magnetic materials polishing and drying. Work piece surface is brightness, finish, no surface traces waterlines.

• Corn cob grit can be used to extract heavy metals from wastewater, and prevent hot thin steel sticking together.

• Corn cob grit can be used for cardboard, cement board, cement brick making, and is the fillers of the glue or paste.make the packing materials.

• Corn cob grit can be used as rubber additives. During manufacture of tires, adding it can increase friction between the tire and the ground, to improve traction effect so as to extend the tire life.

• Debur and clean efficiently.

• The good animal feed.