Grinding coated pigments and other powders
Can you grind pigments or powders that are coated or does it destroy them? For example, Titanium dioxide treated with dimethicone or talc treated with methicone?
Should I grind iron oxides that are water dispersible or can it affect how they function and/or not necessary.
I have had a foundation on my list of things to make for awhile and don’t want to screw the ingredients up before they go into the formula.
Thanks in advance!