Technical Guides

Written for formulators, not for search engines.

Practical guides on choosing, specifying and using ground calcium carbonate — drawn from what our laboratory measures every day.

The same 99.9% pure mineral, two different surfaces. When stearic treatment earns its cost — and when the natural grade is the right answer.

A grade named "10 micron" is not made of 10-micron particles. What the D-values on a laser-diffraction report actually tell you about a filler.

Brightness sets what your customer sees; impurities set what your equipment feels. The two numbers to check before qualifying any filler.

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