Castor Oil for Lubricants & Greases
Bio-Based Lubricity Solutions by Nova Industries
Nova Industries supplies the essential bio-based feedstocks that power the modern lubricant industry.
While petroleum oils dominate the volume market, Castor Oil and its derivatives are indispensable for high-performance applications. Known as the “Liquid Gold” of lubrication, Castor Oil is the only commercially available vegetable oil with a natural hydroxyl group, giving it unmatched polarity, viscosity, and adhesion to metal surfaces.
1. The Technical Edge
Why do formulators add Castor Oil derivatives to petroleum or synthetic bases?
- Extreme Polarity: The hydroxyl group (-OH) on the ricinoleic chain makes the molecule highly polar.1 It acts like a “magnet,” bonding strongly to metal surfaces to create a tenacious lubricating film that resists wipe-off, even under high pressure.2
- Natural Viscosity: It has the highest natural viscosity of any vegetable oil, providing excellent shear stability without the need for polymer thickeners.
- Biodegradability: Castor derivatives are readily biodegradable, making them the base of choice for “Environmentally Acceptable Lubricants” (EALs) used in forestry, marine, and agriculture.3
- Clean Burn: In two-stroke engines, it burns cleanly with minimal carbon deposits, which is why it remains a legend in racing applications.
2. Key Industrial Applications
Lubricating Greases (The 12-HSA Revolution)
- The Industry Standard: Over 70% of the world’s greases are thickened with Lithium 12-Hydroxystearate.
- Role of Nova: We supply 12-Hydroxy Stearic Acid (12-HSA). When reacted with Lithium Hydroxide, it forms a microscopic fiber structure (soap) that holds the oil in place like a sponge.
- Benefit: These greases offer a high dropping point ($>180^\circ C$), excellent water resistance, and mechanical stability, essential for automotive bearings and heavy machinery.
Metalworking Fluids (Cutting Oils)
- Soluble Oils: Sulfonated Castor Oil (Turkey Red Oil) and Castor Esters are used in emulsifiable cutting fluids. They provide “oiliness” and lubricity to reduce friction between the cutting tool and the workpiece.
- Deep Drawing: High-viscosity Castor Oil is used in metal drawing and stamping operations to prevent tearing and extend die life.
Synthetic Lubricants (Esters)
- Aviation & Turbines: Sebacic Acid (derived from Castor) is the precursor for Dioctyl Sebacate (DOS), a synthetic ester used in jet turbine oils and low-temperature hydraulic fluids due to its exceptional thermal stability.
- Bio-Hydraulics: Castor esters are used to formulate fire-resistant and biodegradable hydraulic fluids for eco-sensitive zones.
Racing & Aviation
- 2-Stroke Engines: Castor Oil is still used in high-performance racing karts and model airplane engines. Unlike mineral oils, it does not dissolve in methanol fuel and maintains lubrication at peak temperatures where other oils vaporize.
3. Nova Industries Lubricant Portfolio
We supply the complete range of lubricity additives and thickeners:
| Product | Lubricant Application | Function |
| 12-Hydroxy Stearic Acid | Greases | The primary thickener for Lithium & Lithium Complex greases. |
| Castor Oil (FSG) | Metalworking | Base oil for drawing fluids; lubricity additive. |
| Sebacic Acid | Synthetics | Precursor for DOS/DBS esters (Jet oils, Cold-temp hydraulics). |
| Blown Castor Oil | Heavy Industry | High-viscosity base for wire rope and chain lubricants. |
| Methyl Ricinoleate | Additives | Lubricity improver for Diesel and Bio-fuels. |
| Sulfonated Castor Oil | Soluble Oils | Emulsifier for water-mix cutting fluids. |
Formulation Support
Nova Industries ensures consistent specifications for the grease industry. Our 12-HSA is strictly controlled for Acid Value and Color to ensuring reproducible soap structures in your grease kettles.
For Lubricant Feedstock Inquiries:
Nova Industries
Website: https://novaind.in/