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High-Quality Mica Powder
Mica
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High-Quality Mica Powder

Mica powder is a functional non-metallic mineral material processed from natural mica minerals. It has a typical layered crystal structure, excellent flake morphology, good chemical stability, high temperature resistance, electrical insulation, low thermal conductivity, and good barrier performance. Because of these properties, mica powder is widely used in coatings, paints, plastics, rubber, ceramics, construction materials, cosmetics, friction materials, welding materials, insulation materials, and other industrial formulations.

As a mineral filler, mica powder is valued not only for cost control but also for performance improvement. The natural flake structure helps improve barrier properties, dimensional stability, anti-cracking performance, heat resistance, and surface smoothness. In coating systems, mica powder can extend the penetration path of moisture and corrosive media. In plastics and rubber, it can improve stiffness, dimensional stability, and processing performance. In cosmetic and decorative applications, selected mica grades can provide smooth texture and pearlescent effects.

WANCHENG MINERAL supplies different types of mica powder, including muscovite mica powder, dry ground mica powder, wet ground mica powder, sericite mica powder, calcined mica powder, colored mica powder, and other customized mica products. Different production methods create different particle shapes, brightness, purity levels, and surface properties. Customers can choose suitable grades according to application, particle size, whiteness, oil absorption, aspect ratio, and formulation requirements.

For international industrial buyers, choosing the right mica powder is important. A product that works well in decorative coatings may not be the best choice for engineering plastics, and a cosmetic mica grade may require different purity, softness, color, and particle size control than industrial filler grades. WANCHENG MINERAL provides technical communication, sample support, customized packaging, and stable bulk supply for global customers.

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    Technical Specifications

    Mica powder specifications vary according to mineral type, processing method, particle size, whiteness, and target application. WANCHENG MINERAL can supply mica powder in a wide range of mesh sizes, from coarse grades for construction and friction materials to fine powder grades for coatings, plastics, rubber, cosmetics, and functional fillers. Common mesh sizes include 10mesh,20mesh,40 mesh, 60 mesh, 100 mesh, 200 mesh, 325 mesh, 600 mesh, 800 mesh, 1250 mesh, 2000 mesh, and customized fineness.

    Dry ground mica powder is usually more economical and suitable for general industrial applications. Wet ground mica powder normally has better flake integrity, smoother surface, higher aspect ratio, and improved brightness, making it suitable for high-performance coatings and advanced fillers. Sericite mica powder is often used in cosmetics, coatings, plastics, and rubber due to its fine texture and good dispersibility. Muscovite mica powder is one of the most common mica materials for industrial use.

    The following technical information is provided as a general reference. Final specifications may be adjusted according to customer requirements and production batches. Customers are encouraged to test samples before bulk orders, especially for coating formulations, plastic compounds, cosmetic products, and high-performance applications.

    Main Chemical Composition Table
    Main Technical Parameters Table

    Chemical Component

    Typical Content

    Description
    SiO2 40% - 50% Main silicate component
    Al2O3 20% - 38% Main alumina component
    K2O 6% - 11% Typical mica alkali component
    Fe2O3 0.5% - 6% Varies by mica type and color
    MgO 0.5% - 5% Varies by mica type
    CaO < 2% Minor component
    Na2O < 1.5% Minor alkali component 
    Loss on Ignition Varies by grade Depends on mineral type and processing

    Item

    Typical Value
    Product Name Mica Powder
    Product Type Muscovite, sericite, wet ground, dry ground, calcined, colored
    Appearance White, off-white, silver, golden, black or customized
    Particle Shape Flake powder
    Mesh Size 10 - 2000 mesh or customized
    Moisture Usually <= 1.0%, customized
    Whiteness Depends on grade
    pH Value Approx. 6 - 8
    Specific Gravity Approx. 2.6 - 2.9 g/cm3
    Oil Absorption Depends on particle size and grade
    Heat Resistance Good
    Electrical Insulation Good
    Recommended Use Coatings, plastics, rubber, cosmetics, construction, ceramics, insulation
    Packaging 20kg/25kg bags, jumbo bags, pallets, OEM

    Note: The chemical composition and technical parameters above are typical reference values for mica powder. Final values may vary depending on mica type, raw material source, processing method, particle size, production batch, and customer testing method. WANCHENG MINERAL can provide samples and specification discussion before bulk orders.

    Advantages
    Packaging 
    Production Process

    Mica powder from WANCHENG MINERAL is designed for customers who require stable quality, reliable supply, and application-focused mineral solutions.

    1. Excellent Flake Structure

    The natural layered structure of mica improves barrier properties, reinforcement, smoothness, and dimensional stability in many formulations.

    2. Good Heat Resistance

    Mica has good thermal stability and can be used in heat-resistant coatings, plastics, rubber, ceramics, and insulation materials.

    3. Electrical Insulation

    Mica is widely known for its insulation properties and is suitable for electrical and electronic related materials.

    4. Chemical Stability

    Mica powder has good resistance to many chemical environments, supporting long-term performance in industrial formulations.

    5. Customized Grades

    WANCHENG MINERAL can provide different mica types, mesh sizes, whiteness levels, processing methods, and packaging options.

    6. Wide Application Compatibility

    Mica powder is compatible with many systems, including coatings, plastics, rubber, construction materials, cosmetics, ceramics, and insulation products.

    7. Stable Export Supply

    WANCHENG MINERAL provides sample support, export packaging, technical communication, and long-term bulk supply for international buyers.

    Proper packaging is important for mica powder because moisture, dust leakage, contamination, and rough handling may affect product quality during transportation and storage. WANCHENG MINERAL provides export-grade packaging suitable for different product grades and customer markets.

    Common packaging options include 20kg bags, 25kg PP woven bags, 25kg kraft paper bags, valve bags, jumbo bags, palletized packaging, and OEM packaging. For fine mica powder, moisture-proof and dust-controlled packaging is recommended. For cosmetic or high-value grades, cleaner packaging and inner liner bags can be arranged according to customer requirements.

    Products should be stored in a dry, clean, and ventilated warehouse. Customers should avoid moisture, rain exposure, oil contamination, broken packaging, and mixing with other powders during storage and handling.

    WANCHENG MINERAL follows a controlled production process to ensure stable mica powder quality.

    1. Raw Mica Selection

    Selected mica raw materials are chosen based on mineral type, color, purity, flake structure, impurity level, and target application.

    2. Cleaning and Sorting

    Raw mica is cleaned and sorted to reduce impurities and improve product consistency.

    3. Crushing

    The mica material is crushed into smaller particles suitable for grinding and classification.

    4. Grinding

    Depending on product type, mica can be processed by dry grinding or wet grinding. Dry grinding is suitable for general industrial grades, while wet grinding helps maintain better flake structure and surface smoothness.

    5. Classification

    The ground material is classified into different mesh sizes according to customer requirements.

    6. Quality Inspection

    Each batch can be inspected for particle size, whiteness, moisture, appearance, bulk density, and other requested parameters.

    7. Packaging and Shipment

    Qualified mica powder is packed according to export standards or customer requirements.

    Applications

    Mica powder has a wide application range across many industries. Its layered structure, chemical stability, insulation performance, and functional filler properties make it an important mineral material for both traditional and advanced industrial formulations. 

    1. Coatings and Paints 

    Mica powder is widely used in industrial coatings, anti-corrosion coatings, architectural coatings, powder coatings, decorative paints, marine coatings, and high-performance protective coatings. Its flake structure improves barrier properties and helps reduce moisture penetration, corrosion, cracking, and UV damage. In decorative coatings, mica can also provide smooth texture and visual effects. 

    2. Plastics and Polymer Compounds 

    In plastics, mica powder is used as a reinforcing and functional filler. It can improve stiffness, dimensional stability, heat resistance, and shrinkage control in polypropylene, nylon, PVC, engineering plastics, and composite materials. 

    3. Rubber Products 

    Mica powder can improve barrier performance, heat resistance, dimensional stability, and processing properties in rubber products. It is used in seals, gaskets, rubber sheets, hoses, tires, and industrial rubber components. 

    4. Cosmetics and Personal Care 

    Selected mica powder and sericite mica grades are used in cosmetics such as foundation, eyeshadow, face powder, blush, nail products, and pearlescent pigments. Cosmetic applications require strict attention to purity, particle size, softness, color, and safety requirements. 

    5. Construction Materials 

    Mica powder is used in dry mortar, wall coatings, decorative plaster, insulation boards, gypsum products, cementitious materials, and waterproofing materials. It helps improve workability, crack resistance, and surface texture. 

    6. Ceramics and Refractory Materials 

    Mica powder can be used in ceramics, insulating ceramics, refractory mixtures, heat-resistant boards, and kiln-related materials where thermal stability and mineral structure are beneficial. 

    7. Electrical Insulation and Friction Materials 

    Because mica has excellent electrical insulation and heat resistance, mica powder is used in insulation materials, welding rods, brake pads, clutch facings, and friction formulations. 

    FAQ

    • Q1: What type of mica powder should I choose for coatings?

      Wet ground mica powder is often recommended for high-performance coatings because it offers better flake integrity and barrier performance. Dry ground mica powder can be suitable for general industrial coatings.

    • Q2: Can WANCHENG MINERAL customize particle size?

    • Q3: What information should I provide when purchasing mica powder?

    • Q4: Can samples be provided before bulk order?

    • Q5: What is the difference between dry ground mica and wet ground mica?

    • Q6: Can you provide OEM packaging?

    • Q7: What is the minimum order quantity?

    • Q8: How can I confirm the correct grade for my formulation?

    Contact WANCHENG MINERAL

    Looking for a reliable mica powder manufacturer and supplier in China?

    WANCHENG MINERAL provides mica powder, muscovite mica powder, wet ground mica powder, dry ground mica powder, sericite mica powder, calcined mica powder, colored mica powder, customized particle sizes, export packaging, samples, technical communication, and stable bulk supply for global customers.
    Contact WANCHENG MINERAL today to request product specifications, samples, technical support, and competitive pricing.
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