Coolant strength

[JAZZCNC]

Synthetic coolant is a completely different animal to the typical emulsion and soluble oil type coolants that typically have a 1:1 Brix (Ri) factor where semi and fully synthetics coolant can have up to 3.5 factors.

The Refractometer range (RR) doesn't actually have to be too large for synthetics coolants because of the high Brix Factor, that's why a 0-10% range is more than enough.

For instance, if the coolant Brix multiplier factor is 3.3 and you want a coolant concentration of say 8% which is a typical concentration then the RR would only need to read 2.5 so even a 0-5% refract would be plenty wide enough.