Corncob blasting for wood

Established 1983

God Bless America

Corncob and Corn Cob Blasting No Chemicals! No Pressure washers! No time-consuming hand-sanding!
	This is a good example of a corncob and corn cob blastings renovation in progress. Look at how fresh the wood looks now! The wood is dry. The pores are open and they are ready to accept stain. (Click on the pictures to get a larger view.)
	Eave stripping in progress.
	Close-up of stripping in progress. Note the weathering before and after.
	Close-up of stripped wood. Note how fresh it looks!

Crushed corncob and corn cob blastings are made from the woody ring portion of the corncob. This portion of the Corncob is separated, dried, ground, air-cleaned, and then classified over screens of various mesh sizes. They are available in granules ranging from 1/4” to a fine powder.

Qualities of crushed corn cobs that make them ideal for pressure blasting include its mild abrasiveness, absorbency, and resilience to attrition. Advantages of using corn cobs for blasting include the elimination of masking, elimination of solvents and pollution concerns, non-sparking and non-toxic operation, non-silica content, and the fact that it is organic and biodegradable.


	Common applications of corncob and corn cob blasting include: cleaning of motors, generators, and heavy equipment cleaning of insulators and transformers removal of manufacturing soils from the ceiling of industrial facilities cleaning of pipes and pumps in processing plants cleaning and paint preparation of buildings cleaning of timbers in log homes prior to sealing cleaning of boat hulls


	Crushed corn cobs have a 4.5 Mohs hardness and are available in the following standard sizes:

Size	Passes through:	Retained on:
814	#8 (.0937”)	#14 (.0555”)
1420	#14 (.0555”)	#20 (.0331”)
2040	#20 (.0331”)	#40 (.0165”)
4060	#40 (.0165”)	#60 (.0098”)

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