Castrol Honilo 981 is a high-performance, low viscosity, chlorine- and heavy-metal-free honing and finishing oil designed for precision machining. It provides excellent lubricity, cooling and flushing performance, combined with very good filterability and thermal stability. The low viscosity ensures optimal flushing — ideal for precision honing and superfinishing.
Applications
- Precision honing and superfinishing of steel, cast iron and hardened components
- Machining operations requiring tight tolerances and superior surface finish
- Honing with diamond or CBN tools
- Fine turning, finishing and light grinding operations
Advantages
- Excellent flushing and lubrication for superior surface quality
- Low viscosity reduces drag-out and lowers operating costs
- Free from chlorine, zinc and heavy metals — improved environmental and operator profile
- High oxidation and thermal stability for long fluid life
- Low foaming and minimized misting — suitable for modern machines
Directions for Use
- Honilo 981 is used neat, without dilution.
- Fine filtration (e.g., cartridge filters) recommended for maximum fluid life.
- Remove residues from old chlorinated oils when converting systems.
- Check compatibility with machine paints and seals.
FAQ – Frequently Asked Questions about Castrol Honilo 981
Where is Castrol Honilo 981 typically used?
Honilo 981 is primarily used in precision honing, superfinishing and fine machining operations requiring high surface quality.
Is Honilo 981 chlorine-free?
Yes, Honilo 981 is completely free of chlorine, zinc and heavy metals.
Why is low viscosity beneficial?
Low viscosity improves flushing action, reduces drag-out and helps minimize oil consumption.
