Microcarb

CaCO₃

Calcium Carbonate

Microcarb is the trademark of Micronised Calcium Carbonate produced with a special milling and classification process. Microcarb is designed for cables compounds with elevated electrical properties.

Semi-amorphous organogenic limestone of sedimentary origin with high purity and whiteness. Used in rigid and plasticized PVC for low absorption in relation to high fineness. Also used in rubber, in high quality water-based paints, enamels, cementites and in the paper industry.

Typical values

		Microcarb SB	Microcarb SM
Specific gravity	g/cm³	2,7	2,7
Median particle size (d50)	μ	2.2	1.9
Specific surface area (BET)	m²/g	3.6	3.8
Bulk density (tamped)	g/cm³	0.90	0.87
Sieving residue at 44 μ	%	< 0.01	< 0.01

Main applications

PVC and HFFR cable compounds
Thermoplastic and elastomeric compounds

Downloads

Technical sheet Microcarb SB

Login to download

Technical sheet Microcarb SM

Login to download

Other products

Alufy

Al(OH)₃

Aluminium hydroxide

Alufy is the trademark of our fine milled Aluminium Hydroxide flame-retardant fillers. The synthetic origin of the raw material guarantees a high purity.

Hydromix

Magnesium based blend

Hydromix is the commercial name of the range of Magnesium Hydroxide (Hydrofy) – and Magnesium Carbonate (Magfy) – based flame retardant blends produced by Nuova Sima.