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Non-drying castor oil is converted into a drying oil when the hydroxyl group and an adjacent hydrogen are removed from each ricinoleic acid chain. An additional double bond is created, resulting in two double bonds on each chain, of which 25% are in the conjugated position.

The result is a light colored, odorless, drying oil known as dehydrated castor oil. Dehydrated castor oil (DCO) is well known for its non-yellowing and outstanding color retention characteristics. Varnishes, alkyds and resin systems based on DCO are noted for fast-dry, flexibility, excellent chemical resistance, adhesion to metals, high gloss and water-resistance. The Castung® dehydrated castor oils are the most controllable conjugated oils for kettle reactions and are frequently used to modify other oils and fatty acid systems.

Castung® 103 G-H is an unbodied dehydrated castor oil that can be used with pure and modified phenolic resins to obtain fast-dry coatings, imparting alkali resistance for can linings, corrosion resistant coatings, traffic paints, ink vehicles and marine finishes. Castung® 103 G-H is an excellent plasticizer for petroleum hydrocarbon resins. Castung® 103 G-H is preferred for alkyd and copolymer resins. Pure dehydrated castor oil (unbodied) is ell known for it's non-yellowing and outstanding color retention characteristics. They are the most controllable conjugated oils and are frequently used to modify other oils and fatty acid systems.

Castung® 403 U-V, Castung® 403 Z-3 polymerized (bodied) medium/high viscosity dehydrated castor oils are known for their faster processing and drying times than Castung® 103 G-H. these products also have non-yellowing and outstanding color retention characteristics. they are modifier resins that impart increased brushability and gloss in exterior coatings. Castung® 403 Z-3 is ideal as an aluminum paint vehicle because of its fast dry, flexibility and low acid value.

Castung® 235 is a water dispersible dehydrated castor oil polymer developed to improve the adhesion of latex pains to chalky substrates, and as a VOC modifier for water-reducible alkyd coatings. As a VOC modifier for waterborne coatings it can be added at any point in the manufacturing process, or it can be post-added if desired.

Copolymer 186, Copolymer 186-85 are Castung® derivatives used in the preparation of quality varnishes and coating vehicles by cold-blending with selected resins at room temperature. Copolymer 186 has excellent compatibility with a wide range of resins at room temperature. It yields coatings with excellent exterior performance as clears, anticorrosive primers and coatings, aluminum paints and primers, blister resistant wood primers and for upgrading alkyd coatings. Copolymer 186-85 is a 15% solvent reduction of Copolymer 186.

XXX-1 Castor Oil is a partially dehydrated castor oil with mineral oil compatibility, it is USDA accepted as a trolley lubricant in meat packing houses. XXX-1 complies with 21CFR Part 178.3570 - Lubricants with Incidental Food Contact. It is an efficient plasticizer with excellent pigment wetting properties making it a choice product for caulks, sealants and joint compounds.