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PLASTIC

2025-9-19

With high temperature resistance (600℃) and stable physical and chemical properties, Mica has a Mohs hardness of 2～3 and a specific gravity of 2.7～3.5, which can be split into extremely thin flakes, elastic and bendable; Its volume resistivity is 10 13-15Ω•cm, breakdown voltage can reach more than 200kv/mm, thermal expansion coefficient about 7×10-6K-1.
Grea "Plastic Grade Mica Powder" is prepared by complicated processes including fine ore selection, wheel wet grinding, cyclone classification, dry dehydration. It has a complete sheet structure, large radius-thickness ratio, high purity, concentrated particle size distribution and excellent processing fluidity and many other advantages.

▎Features and Benefits

• One of the lightweight modified materials—the bulk density of mineral powder ≤0.18g/cm³

• Improving the dimensional stability of thermoplastic resins--reducing shrinkage, inhibiting warpage, and increasing heat distortion temperature

• Increasing the flexural modulus--high radius-thickness ratio sheet structure, two-dimensional enhancement, ensuring the resin anisotropy

• Insulation material--low magnetic substance, high insulation, meeting the technical requirements of smart and electronic assembly applications

▎Typical Physical Properties

Specification Index	Whiteness %	Particle Size Distribution D50 um	moisture %	bulk density
GM-201	69±2	≤28	≤0.8	≤0.20
GM-2	70±2	≤24	≤0.8	≤0.16
GM-3	73±1	≤18	≤0.5	≤0.18
GM-5	≥70	≤48	≤0.8	≤0.24
GM-6	≥76	17±2	≤0.8	≤0.15
GM-8	≥76	≤25	≤0.5	≤0.15
GP-100	Light grey	≤100	≤0.8	≤0.26
GP-1	Light grey	≤40	≤0.8	≤0.22

Note:

1. The above are typical data, and the specific product parameters are based on the enterprise inspection report.

2. All the above are normal products, but the special specifications and customized products are not shown.

▎Application Area

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