Castrol Hysol SL 35 XBB

Castrol Hysol SL 35 XBB is a high-performance semi-synthetic metalworking fluid formulated to deliver superior machining results, excellent corrosion protection, and long fluid life.
This advanced coolant is free from boron, chlorine, and formaldehyde-releasing agents, making it fully compliant with modern waste management and environmental regulations.

Built with Castrol’s XBB technology, Hysol SL 35 XBB maintains exceptional fluid stability and bacterial resistance, reducing maintenance needs and helping to lower overall operating costs.

Reliable Performance and Corrosion Protection

The innovative additive package in Castrol Hysol SL 35 XBB provides outstanding anti-corrosion protection for both machine tools and finished components.
Its semi-synthetic formulation ensures excellent cooling and lubricating performance, resulting in improved surface finish and extended tool life.

In addition, its low-foam behaviour makes it ideal for use in modern high-pressure and high-speed systems, ensuring smooth, consistent performance under demanding conditions.

Why Choose Castrol Hysol SL 35 XBB?

Choosing Castrol Hysol SL 35 XBB means investing in a reliable, efficient, and environmentally responsible semi-synthetic coolant that enhances productivity and reduces operating costs.
Its advanced chemistry ensures long-term stability, corrosion protection, and smooth machining performance across a variety of applications.

With Castrol’s proven XBB technology, Hysol SL 35 XBB delivers consistent quality, cleaner systems, and long-lasting protection—making it the ideal choice for modern, sustainable manufacturing operations.

Castrol Hysol SL 35 XBB is designed for use in both large central systems and individual sump machines, offering great flexibility across various machining operations.
It performs exceptionally well with ferrous and aluminium alloys, making it a dependable choice for aerospace, automotive, and general engineering industries.

Its superior wetting and cleaning properties help reduce coolant drag-out, keeping machines cleaner and minimising fluid waste for better overall efficiency.

Castrol Hysol SL 35 XBB High Performance Semi-Synthetic Metalworking Fluid Advantages:

• Free from boron, chlorine, and formaldehyde-releasing agents – supports compliance with modern environmental and waste disposal regulations.

• Extended fluid life – stable formulation helps reduce maintenance intervals and machine downtime.

• Low foam in recommended water conditions – ensures reliable, trouble-free operation in high-performance systems.

• Excellent corrosion protection – safeguards machine tools and components, extending service life.

• Good wetting and cleaning properties – reduces coolant carry-off and helps maintain a cleaner working environment.

• Versatile and compliant – suitable for a wide range of materials and machining applications, enabling product consolidation and simplified fluid management.

Recommended Concentrations:

Grinding 4-6%
General Machining 6-10%
Drilling 6-8%
Reaming 6-10%
Broaching 6-10%
Water range 100-800 ppm CaCO3

Storage:

To avoid product deterioration always keep the container/drum tightly sealed. Store the product in a cool, dry place away from direct sunlight. Prevent exposure to frost and avoid water ingress. For optimum product stability, it is preferable to store the product indoors between 5°C and 45 °C / 41°F and 113°F. For more details, please refer to the product safety data sheet.

Download Technical Data Sheet

Download Safety Data Sheet

Contact Us