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Sericite Mica Powder
Mica
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Sericite Mica Powder

Sericite mica powder is a fine-grained mica mineral with a naturally soft texture, smooth surface feel, good whiteness, and excellent chemical stability. It is commonly considered a high-value functional mineral filler because of its fine particle size, layered crystal structure, low hardness, good dispersion, and compatibility with many industrial formulation systems. Compared with ordinary coarse mica powder, sericite powder usually provides a smoother finish, better coating appearance, and more uniform dispersion in paints, plastics, cosmetics, rubber, ceramics, and other applications.

The mineral structure of sericite gives it excellent lamellar properties. These thin layered particles can improve barrier performance, suspension stability, dimensional stability, and surface smoothness in different formulas. In coatings, sericite mica powder helps enhance smoothness, weather resistance, anti-cracking properties, and decorative appearance. In plastics and rubber, it can act as a functional filler to improve dimensional stability, reduce shrinkage, and enhance mechanical performance. In cosmetic applications, carefully selected sericite powder is valued for its silky texture and smooth skin feel.

WANCHENG MINERAL supplies sericite mica powder for global industrial customers, distributors, and formulation manufacturers. We focus on stable raw material selection, controlled grinding, particle size classification, strict quality inspection, and export-grade packaging. Our goal is to provide consistent sericite powder solutions for customers who require reliable mineral fillers for coatings, paints, plastics, cosmetics, rubber, ceramics, and other applications.

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    Technical Specifications

    Sericite mica powder can be supplied in different particle sizes, whiteness levels, and customized grades according to the final application. Fine grades are commonly used in coatings, cosmetics, plastics, rubber, and functional filler systems, while coarser grades may be selected for special industrial formulations. WANCHENG MINERAL can recommend suitable specifications according to customer requirements such as particle size, whiteness, oil absorption, moisture, and packaging.

    Typical mesh sizes may include 325 mesh, 600 mesh, 800 mesh, 1250 mesh, 2000 mesh, and other customized grades. The actual specification should be selected according to coating viscosity, film thickness, plastic processing requirements, cosmetic texture requirements, or rubber compounding needs. For high-end coatings and cosmetics, finer particle size and stable whiteness are usually more important. For plastic and rubber applications, dispersion, particle distribution, and functional performance may be more critical.

    The specifications below are typical reference values. Final values may vary depending on raw material source, grinding process, particle size grade, and customer testing method. WANCHENG MINERAL can provide samples and batch information for customer evaluation before bulk orders.

    Main Chemical Composition Table
    Main Technical Parameters Table

    Chemical Component

    Typical Content

    Description
    SiO2 45% - 55% Main silicate component
    Al2O3 25% - 35% Main alumina component
    K2O 6% - 10% Typical mica alkali component
    Fe2O3 0.5% - 3.0% Affects whiteness and color
    MgO 0.5% - 3.0% Minor component
    CaO <=2.0% Minor component
    Na2O <=1.5% Minor alkali component
    Loss on Ignition 3% - 6% Depends on ore and processing

    Item

    Typical Value
    Product Name Sericite Mica Powder
    Mineral Type Fine-grained mica mineral
    Appearance White to light gray fine powder
    Available Mesh 325 mesh, 600 mesh, 800 mesh, 1250 mesh, 2000 mesh or customized
    Whiteness Customized according to grade
    Moisture Low moisture
    Oil Absorption Low to moderate
    Particle Structure Lamellar flake structure
    Hardness Approx. 2 - 3 Mohs
    Chemical Stability Good
    Recommended Use Coatings, cosmetics, plastics, rubber, ceramics, fillers
    Packaging 25kg bags, jumbo bags, pallet packaging, OEM

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

    Advantages
    Packaging
    Production Process 

    Sericite mica powder from WANCHENG MINERAL provides several advantages for customers looking for fine functional mineral fillers.

    1. Fine and Smooth Texture

    Sericite has a naturally soft and smooth feel. This makes it suitable for coatings, cosmetics, decorative materials, and surface-sensitive applications.

    2. Excellent Lamellar Structure

    The layered particles can improve barrier performance, suspension stability, dimensional stability, and surface smoothness in many formulas.

    3. Good Chemical Stability

    Sericite mica powder is stable under many industrial conditions and compatible with various resin, coating, plastic, and rubber systems.

    4. Good Dispersion

    Properly processed sericite powder can disperse well in suitable formulation systems, helping manufacturers achieve stable product performance.

    5. Low Hardness and Smooth Surface Effect

    Compared with harder mineral fillers, sericite is gentler in many applications and helps reduce surface roughness.

    6. Customizable Specifications

    WANCHENG MINERAL can supply different particle sizes, packaging methods, and product grades according to customer needs.

    WANCHENG MINERAL provides export-grade packaging for sericite mica powder to keep products dry, clean, and suitable for long-distance transportation. Packaging can be selected according to customer handling requirements, warehouse conditions, distributor needs, and final market preferences.

    Common packaging options include 25kg PP woven bags, 25kg kraft paper bags, inner plastic liner bags, jumbo bags, palletized packaging, and OEM customized packaging. For fine powder products, moisture-proof and dust-control packaging is recommended. During storage, the product should be kept in a dry, clean, covered, and ventilated area. Customers should avoid rain, high humidity, broken packaging, oil contamination, and direct contact with the ground.

    WANCHENG MINERAL follows a controlled production process to provide stable sericite mica powder for international customers.

    1. Raw Ore Selection

    Selected sericite ore is chosen based on mineral quality, whiteness, impurity level, and suitability for fine grinding.

    2. Cleaning and Pre-Treatment

    The raw material is cleaned and prepared to reduce impurities before crushing and grinding.

    3. Crushing

    The selected ore is crushed into smaller particles suitable for grinding.

    4. Grinding

    The material is ground into required particle sizes using suitable grinding equipment. Grinding control is important for maintaining particle distribution and product performance.

    5. Classification and Screening

    The powder is classified and screened to obtain different grades such as 325 mesh, 800 mesh, 1250 mesh, or customized particle sizes.

    6. Quality Inspection

    Each batch is inspected for appearance, particle size, whiteness, moisture, and packaging condition before shipment.

    7. Packaging and Shipment

    Qualified products are packed according to export standards or customer requirements.

    Applications

    Sericite mica powder is widely used in industries that require smooth texture, good dispersion, stable mineral performance, and improved surface quality. Its fine lamellar particles make it a versatile functional filler for many formulation systems.

    1. Coatings and Paints

    In architectural coatings, industrial coatings, decorative paints, anti-corrosion coatings, and powder coatings, sericite mica powder can improve surface smoothness, hiding support, weather resistance, suspension stability, and crack resistance. Its layered structure helps create a barrier effect inside the coating film, which can reduce moisture penetration and improve durability. The fine texture also helps improve coating appearance and touch.

    2. Cosmetics and Personal Care

    Sericite mica powder is often used in makeup powders, foundation, blush, eye shadow, loose powder, pressed powder, and skincare-related formulations. It can provide a smooth skin feel, good spreadability, soft focus effect, and natural matte appearance. For cosmetic applications, customers should select grades that meet their own regulatory and purity requirements.

    3. Plastics and Polymer Compounds

    In plastics, sericite mica powder can be used as a functional filler to improve dimensional stability, reduce shrinkage, enhance stiffness, and improve surface finish. It is suitable for PP, PE, PVC, engineering plastics, masterbatch, and composite materials where fine mineral fillers are needed.

    4. Rubber Industry

    Sericite powder can be used in rubber products to improve processing performance, surface smoothness, dimensional stability, and filler reinforcement. It may be used in seals, gaskets, hoses, rubber sheets, and other industrial rubber products.

    5. Ceramics and Refractories

    Sericite mica powder can be used as a mineral component in ceramics, ceramic glazes, refractory mixtures, and heat-resistant materials. It contributes mineral stability and may help adjust texture and processing behavior.

    6. Welding Materials and Industrial FillersSericite mica powder can be used in welding electrode coatings, industrial fillers, sealants, adhesives, and composite materials. It supports coating smoothness, stability, and formulation performance in certain industrial systems.

    FAQ

    • Q1: What is sericite mica powder used for?

      Sericite mica powder is used in coatings, paints, cosmetics, plastics, rubber, ceramics, welding materials, adhesives, sealants, and industrial filler applications.

    • Q2: What is the difference between sericite and ordinary mica powder?

    • Q3: Can sericite mica powder be used in cosmetics?

    • Q4: Can WANCHENG MINERAL customize particle size?

    • Q5: What packaging options are available?

    • Q6: Can samples be provided before bulk order?

    Contact WANCHENG MINERAL

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

    WANCHENG MINERAL provides high-quality sericite mica powder, stable particle size, export-grade packaging, technical support, and customized mineral solutions for global customers.
    Contact WANCHENG MINERAL today to request product specifications, samples, technical support, and competitive pricing.
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