Castrol Hysol SL 35 XBB, 20L

Castrol Hysol SL 35 XBB is an advanced semi-synthetic coolant-lubricant fluid designed for demanding metalworking applications. Its boron- and formaldehyde-releaser-free formulation ensures safe use in compliance with the latest health and safety regulations. The product provides excellent corrosion protection, high emulsion stability, and outstanding wetting properties—contributing to reduced coolant consumption and lower operational costs.

Applications:

Castrol Hysol SL 35 XBB is recommended for machining cast iron and for grinding operations on low- and medium-alloyed steels. It is also suitable for high-alloy steels, stainless steels, aluminum alloys, titanium alloys, and non-ferrous metals. Ideal for grinding, milling, turning, drilling, reaming, tapping, and broaching operations. The product can be used in both central systems and individual machine sumps.

Benefits and advantages:

• Extended coolant life: reduces the frequency of fluid replacement and machine downtime.
• Excellent emulsion stability: maintains consistent performance and minimizes deposits.
• Superior corrosion protection: safeguards both machinery and machined parts.
• Outstanding wetting properties: minimize coolant drag-out with chips and enhance machine cleanliness.
• Boron- and formaldehyde-free formulation: compliant with modern environmental and workplace safety standards.

Classification according to standards:

• DIN 51369 – Emulsion pH value (4%): 9.6
• ASTM E70-97 – Refractometer factor: 1.1

Approvals and certifications:
This product meets the highest safety and ecological requirements for modern production environments. Free from boron and formaldehyde releasers, it is suitable for use in compliance with current industrial hygiene standards.

Technical data:

Recommended working concentrations:

• Grinding: 4–6%
• General machining: 6–10%
• Drilling: 6–8%
• Reaming and tapping: 6–10%
• Broaching: 6–10%

Storage:
Store in a dry and cool place at temperatures between 5°C and 45°C. Keep containers tightly closed to avoid water ingress and contamination. Protect from freezing and direct sunlight.

Downloadable documents:
Product data sheets