Dehydrated Castor Oil (DCO), Special Grade, is created when approximately 5% of the chemically combined water has been removed. Its drying properties are similar to those of Tung oil. Heating the oil in the presence of catalysts such as clays and metal oxides, phosphoric acid, and sulfuric acid, is where dehydration is carried out. Dehydrated Castor Oil (DCO), Special Grade has a characteristic odor and is a yellow oily liquid. It has an acid value of 4 mg KOH/g max and a Poise viscosity (25°C) of 1.6 to 2.8. Dehydrated castor oil is a unique drying oil, which imparts fine gloss, toughness, good flexibility, adhesion, and chemical and water resistance to the dry paint film with non-yellowing properties. DCO is a very suitable for Linseed oil. Using DCO with paints offer superior finish and are super white. Applications are as a primary binder for enamels, house paints, sealants, caulks, and inks.
Castor International has years of experience in sourcing, marketing and sales of castor oil & derivatives. They are specialist in the field of this vegetable oil and its derivatives. Castor oil & derivatives have a lot of different applications. One of the biggest applications is Polyurethane. Some examples are: (floor)coatings, adhesives, sealants and soft and rigid foam. Besides castor oil & derivatives Castor International offers different raw materials for PU application. Castor International is also a specialist in the field of this vegetable oil and its derivatives.
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