Syntilo 81 E is a synthetic, water-mix coolant developed as a general purpose grinding fluid for ferrous metals. It is suitable for use in both central systems and single sump machines and is designed for surface, cylindrical, disc and centreless grinding operations.
Recommended concentrations
Grinding: 3–5 %
Water hardness range: 2–20 °dH (≈ 36–356 ppm CaCO₃)
FAQ – Frequently Asked Questions about Castrol SYNTILO 81 E
Which applications is SYNTILO 81 E suitable for?
It is designed for grinding operations and light machining of ferrous materials.
Is SYNTILO 81 E boron- and formaldehyde-free?
Yes, it contains no boron and no formaldehyde-releasing biocides.
Can it be used in modern fine-filtration systems?
Yes, it is compatible with high-performance filtration equipment.
Does the product leave minimal residues?
Yes, residue formation is very low, supporting system and machine cleanliness.
Is it suitable for carbide machining?
Yes, SYNTILO 81 E is suitable for carbide applications.
