Castrol Hysol SL 20 XBB

Castrol Hysol SL 20 XBB is a high-performance semi-synthetic metalworking fluid designed to deliver reliable machining results, longer fluid life, and reduced maintenance costs.
This advanced formulation is free from boron and formaldehyde-releasing agents, helping you stay compliant with the latest environmental and waste management regulations.

Powered by Castrol’s innovative XBB technology, Hysol SL 20 XBB offers exceptional stability, improved bacterial resistance, and consistent pH levels throughout its service life.
This ensures cleaner systems, extended fluid performance, and lower overall operational costs.

Optimised for Performance and Protection

The balanced additive package in Castrol Hysol SL 20 XBB works synergistically to improve machining performance and surface finish across a wide range of metals.
Its semi-synthetic formulation provides excellent cooling and lubrication, making it ideal for demanding machining environments.

In addition, the product delivers superior corrosion protection, helping to safeguard machine tools and finished components from rust and staining.

Why Choose Castrol Hysol SL 20 XBB?

By choosing Castrol Hysol SL 20 XBB, you gain a reliable, long-lasting metalworking fluid that enhances productivity and sustainability.
Its semi-synthetic design offers the ideal balance of cooling, lubrication, and corrosion protection—helping you achieve excellent surface finishes, cleaner machines, and lower running costs.

With Castrol’s trusted XBB technology, Hysol SL 20 XBB is the smart choice for manufacturers who need stable, efficient, and environmentally responsible performance every day.

Castrol Hysol SL 20 XBB is suitable for use in both large central systems and single-sump machines, providing flexibility across different production setups.
It is specifically designed for light to medium-duty machining of ferrous and aluminium alloys, making it a versatile choice for general engineering and automotive applications.

Its low-foam properties ensure trouble-free operation even in high-pressure and high-speed systems, while its excellent wetting ability helps reduce coolant drag-out and keep machines cleaner.

Recommended Concentrations

Grinding 4-6%

General Machining 6-10%

Drilling 6-8%

Reaming 6-10%

Broaching 6-10%

Water range 100-800 ppm CaCO3

Castrol Hysol SL 20 XBB High Performance Semi-Synthetic Metalworking Fluid Advantages:

• Boron- and formaldehyde-releasing agent free – helps meet environmental and waste treatment requirements with ease.

• Extended fluid life – provides long-term stability and bacterial resistance, reducing downtime and maintenance costs.

• Low-foam formulation – ideal for a wide range of water conditions and modern machining systems.

• Excellent anti-corrosion performance – helps protect machine tools and metal parts during and after machining.

• Good wetting and cleaning properties – reduces fluid carry-off, ensuring cleaner components and improved cost efficiency.

• Flexible application range – suitable for both central and stand-alone systems, supporting consistent performance across operations.

Please consult the Product Data Sheet 

Health & Safety:

Please refer to the relevant health and safety data sheet, a copy of which is freely available to all our customers.

Storage:

All packages should be stored under cover. Where outside storage is unavoidable, drums should be laid horizontally to avoid the possible ingress of water and the obliteration of drum markings. Products should not be stored above 60°C or exposed to hot sun or freezing conditions.

Contact Us 

Product Data Sheet 

Safety Data Sheet