Oxidized castor oil

Oxidized castor oil (CAS 68187-84-8) is a chemically modified vegetable oil produced by controlled oxidation of natural castor oil. Also marketed as CasChem 40 Oil.

Where is Oxidized castor oil used?

• Coatings and printing inks: bodying agent and flow modifier improving film build and reducing sagging
• Adhesives and sealants: adjusts tack, flexibility and substrate wetting in solvent-based and reactive systems
• PVC and rubber compounding: plasticizer contributing softness and processing aid properties
• Metalworking fluids and industrial lubricants: base component or additive
• The oxidation process introduces functional crosslinks that build viscosity and improve compatibility with resins.

Good to know: Product performance is typically characterized by viscosity, acid value and hydroxyl value rather than specific pharmacopeial standards.

Commercial specifications

• Viscosity grade is the primary specification differentiator