Calcite is a natural form of calcium carbonate widely used in Plastics, Paints and Rubber as a filter due to its high dispersibility, low oil absorption, higher impact strength, smooth surface finish, easy processing and excellent dimensional stability.
Effects on properties of polymers :
- Increase in flexuaral modules
- Increase in dimensional stability reduces creep resistance
- Increase in HDT
- Lower melt viscosity
- Improved electrical properties
- Improved processing characteristics
- Good dispersion
- Excellent hiding power.
Recommended Applications :
- PP compounding for furnitures, automobiles and home appliances
- Antifabrilliant Masterbatches for PP and LDPE woven sack
- Colour Masterbatches and other additive Masterbatches
- PVC Cable compounding
- Paints
- Paper Coatings
- Thermoset plastic
- Vinyl floorings
- PU foam (Flexible and Rigid)
- Powder Coatings.
APPEARANCE |
FINE WHITE POWDER |
CALCIUM CARBONATE CONTENT |
96.0 - 97.0 % |
MAGNESIA as MgO |
0.4 - 0.6 % |
SILICA as SiO2 |
0.4 - 0.6 % |
pH |
9.0 - 10.5 % |
SOLUBLE ALKALI as Na2O |
0.10 - 0.20 % |
SULPHATE as SO4 |
0.20 - 0.40 % |
STEARATE COATING |
3 % |
BULK DENSITY ( as per IS:918-1985 ) |
0.50 - 0.62 Gram / CC |
FINENESS ( MATERIAL PASSING 200 mesh BSS ) |
99.8 % |
MOISTURE ( LOSS ON DRYING AT 110o C ) |
0.8 % Maximum |
AVERAGE PARTICLE SIZE |
3 - 6 Microns |
D.O.P. ABSORPTION |
44 - 54 % |
WATER PROOFING |
98 - 100 % |
Grade |
Bulk Density |
Average Particle Size (Microns) |
Oil Absorption V / W D. O. P. |
V / W Linseed |
Specific Gravity |
2.60 - 2.70 |
F |
0.37 - 0.43 Gram / CC |
4 - 7 |
74 - 80 % |
42 - 50 % |
Solution in 5 N.HCL |
Clear |
H |
0.48 - 0.57 Gram / CC |
8 - 10 |
70 - 74 % |
36 - 40 % |
Fineness |
99.8 % |
L |
0.67 - 0.83 Gram / CC |
10 - 13 |
42 - 46 % |
26 - 30 % |
Moisture |
0.5 - 0.8 % |
M |
0.83 - 0.95 Gram / CC |
13 - 15 |
45 - 48 % |
34 - 38 % |
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