Syntilo CR 4 is a synthetic, water-mix coolant designed primarily for grinding tungsten carbide. It can also be used for general grinding of ferrous metals and forms clear, stable solutions in both hard and soft waters.
Recommended concentrations
Grinding: 5–6 %
Water hardness range: 3–20 °dH (≈ 53–356 ppm CaCO₃)
FAQ – Frequently Asked Questions about Castrol SYNTILO CR 4
Which applications is SYNTILO CR 4 designed for?
It is intended for grinding operations and light machining of ferrous materials.
Is SYNTILO CR 4 boron- and formaldehyde-free?
Yes, it contains no boron and no formaldehyde-releasing biocides.
Can the product be used in automated filtration systems?
Yes, it is compatible with modern coolant filtration installations.
Does it leave minimal residues?
Yes, the product features very low residue levels to support machine cleanliness.
Is it suitable for carbide machining?
It may be used under certain conditions where process and tooling compatibility are verified.
