Micro 40

Micro 40 is a natural product dry treated in plant enclosed to ancient quarry calcic marble (Quarry “Cava Reale Marmorera”, placed near Valdieri – Piedmont-Italy).

Visual aspect

White powder.

Areas of use

Plastics.
Rubber industry.
Water-based paints for interior and exterior.
Adhesives, glues.
Flue gas desulfurization, water and ground.

Chemical gradeCaCO398/99%
Hardness (Mohs)3
Moisture< 0,2 %
Oil absorption19± 1
Refractive index1,63 ÷ 1,66
PH value9± 1



ELEMENTS%TOLLERANCE
Ca O54,7(± 0,5)
Mg O0,75(± 0,3)
Fe2 O30,08(± 0,01)
Si O20,75(± 0,5)
PF43,5(± 0,5)

GRAIN SIZE (µ)%
> 45< 3
> 600,0
carbocalcio–curva-granulometrica–micro-40