Talc (Soap Stone)
Processed for controlled particle size, high purity, and lamellar morphology, Talc provides reinforcement, smoothness, barrier functionality, and processing lubrication across polymers, coatings, rubber, paper, and ceramics.
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Product Overview: High-Purity Industrial Talc
Talc (Hydrous Magnesium Silicate, Mg₃Si₄O₁₀(OH)₂) is naturally the softest mineral known (Mohs hardness 1.0), featuring a distinct lamellar platy crystal structure, superior slip, and chemical inertness. Processed for controlled particle distribution, high whiteness, and lamellar aspect ratio, Talc delivers reinforcement, lubricity, barrier protection, and surface smoothness across polymers, coatings, rubber, paper, ceramics, and cosmetics.
Its platy particle morphology acts as a micro-barrier against moisture and corrosion in protective coatings, while drastically improving flexural modulus, heat deflection temperature (HDT), and dimensional stability in polypropylene (PP) automotive compounds. In cosmetics, its natural softness and organoleptic purity provide smooth spreadability, luxurious touch, and moisture absorption.
Key Benefits
Platy Particle Structure
Lamellar platelets provide structural reinforcement, barrier impermeability, and suspension stability.
Low Abrasiveness
Enables smoother processing, minimal wear on processing dies, and extended machine equipment life.
Good Reinforcement
Contributes significantly to flexural stiffness, tensile strength, and dimensional stability in polymers.
Excellent Surface Finish
Improves coating smoothness, visual appearance, and silky tactile touch in finished goods.
Thermal Stability
Supports elevated processing temperatures and imparts flame-retardant barrier action.
Good Absorbency & Slip
Enhances lubricating slip, tactile smoothness, and moisture-handling performance.
Applications
Plastic & Polymer Reinforcement (PP, PE)
Paints, Primers & Protective Coatings
Rubber Goods, Cables & Extrusions
Ceramic Bodies & Glazes
Technical Specifications
| Parameter | Cosmetic Grade | Paint Premium | Plastics Super | Ceramic Grade | Rubber Fill |
|---|---|---|---|---|---|
| Magnesium Oxide | 31.5% | 30.2% | 29.8% | 28.5% | 26.0% |
| Silica (SiO2) | 61.2% | 60.0% | 59.5% | 58.0% | 54.0% |
| Iron Oxide (Fe2O3) | 0.15% | 0.25% | 0.45% | 0.85% | 1.80% |
| Whiteness | 96.5% | 94.0% | 92.0% | 88.0% | 78.0% |
| LOI | 5.2% | 5.8% | 6.2% | 7.0% | 9.5% |
| Oil Absorption | 45 g/100g | 38 g/100g | 35 g/100g | 30 g/100g | 25 g/100g |
| pH Level | 8.8 | 8.5 | 8.5 | 8.2 | 8.0 |
| Mesh Size | 500 Mesh | 325 Mesh | 325 Mesh | 200 Mesh | 150 Mesh |
Why Choose Us?
100% Asbestos-Free
Certified asbestos-free deposits verified through X-ray diffraction (XRD) and SEM electron microscopy.
High Lamellar Aspect Ratio
Delaminated grinding technology preserves platelet structure for maximum polymer stiffening.
High Optical Whiteness
Selective mining ensures brightness L* > 94% with low iron content for neutral color matching.
Custom Particle Sizing
Supplied from 300 mesh down to ultrafine 2 micron cuts tailored to plastics, paints, or cosmetics.