BCO (Blown Castor Oil)

BCO (Blown Castor Oil) is an old-time favorite for controlling water pickup in all types of lithographic and offset inks. A pale, straw-colored liquid with the characteristic odor of castor bean oil, BCO is stirred in at a low temperature to produce optimum results.


Usually, only one or two percent is all that is needed to bring water pickup down to desired levels. BCO is recommended for most colors. Some pigments, such as Lithol Rubine, tend to gel up when BCO is used in the formula. We suggest the use of an alternative water pickup control agent.


BCO  has 100% bio/renewables content.

Castor Beans: the bean is crushed, and the valuable oil is expelled to produce a raw material for many purposes, including lubricants and emulsion-control agents.

Packaging Options:
3.5 Gallon Plastic Bucket
3.5 Gallon Plastic Bucket (net 30 lbs)
5 Gallon Plastic Bucket
5 gallon plastic bucket with optional pour spout (40-45 lbs)
15 Gallon Metal Drum
15 Gallon Steel Drum / Kit (110-135 lbs net)
55 gallon straight side drum
55 gallon straight sided steel drum (net 400-450 lbs)
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Plant & Offices: 2700 South 12th Avenue, Broadview, IL 60155

Telephone 708 344 1295  FAX  708 865 5759

© 2021 By R. A. Kerley Ink Engineers, Inc. (Kerley Ink)