Ground/Heavy Calcium Carbonate
The products of this series are with high whiteness, average particle size, and high purity, which are made from natural high purity and high whiteness calcite. They can be widely used as quality filler in the field of plastics, paint, sealant and rubber to efficiently improve products property and reduce the production cost.
1) Specifcation
CaCO3 % ≥ 97
Whiteness ≥ 93
Moisture and Volatile,% ≤ 0.5
Insoluble substance in hydrochloric acid% ≤ 0.3
Fe,% ≤ 0.1
hardness ≤ 3.5
PH 8.0-9.0
Residue:
45um mesh test sieve,% ≤ 0.02
2)Usage:
Filler of foamed plastic such as EVA,Polyolefin,Polystyrene,Polyurethane.
3)Characteristic:
1) Identical grain size ,low oil absorption value
2) To reduce the cost of products, to make products have good foamed effect
3)To enhance hardness,rigidity,size stability,fire-retardantness,glossiness of products
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