What is the correct Refractometer setting?
Using the Brix scale, the ideal setting is between 1 and 2. A reading of over 2 is too rich, while under 1 is too lean. A fresh batch of 20:1 coolant should read 1.0, while a fresh batch of 10:1 coolant should read 2.0. Over diluting or too lean a mixture will decrease GrindClean’s corrosion protection and cause rust. Too strong or rich a mixture will make the fluid stickier and foamier. It will also have a strong chemical odor, and could cause irritation of the skin (especially if it sticks to the skin). A strong mixture does not improve coolant performance.
