Composite rock flakes are a new type of multi-functional composite material made by mixing natural mineral powders (such as mica, quartz, and calcite) with high-molecular polymers (such as acrylic resin, polyurethane) through processes like stirring, compounding, film formation, and crushing. As a core functional additive for advanced coatings, it integrates the advantages of natural stone’s texture and polymer’s durability, widely used in building exterior coatings, interior wall decorations, water-based paint, and anti-corrosion engineering. It boasts core strengths such as rich texture, strong adhesion, weather resistance, and cost-effectiveness.

 1. Meticulous Craftsmanship: Two Production Paths Ensure Controllable and Traceable Quality

（1）Natural Mineral Composite Molding

Prepared by mixing natural mica, quartz sand, calcite and other mineral powders with water-based adhesives, then through compression molding, drying, and crushing. It retains the natural luster and texture of minerals, low production cost, and stable basic performance. Suitable for general interior and exterior wall coating scenarios with cost-performance requirements

（2）Polymer Modification and High-Tech Composite

Adopts precision processes such as high-molecular polymer impregnation, surface cross-linking modification, and ultra-fine grinding. Raw materials can utilize recycled mineral processing tailings and waste polymer materials to realize resource recycling, in line with green production trends. The modified products have high bonding strength, uniform particle size distribution, excellent flexibility and weather resistance, meeting the stringent requirements of high-rise building exterior walls, heavy-duty anti-corrosion projects, and high-grade home decoration coatings.

2. Core Features: Six Major Advantages Underpin “Abundant Value”

（1）Environmentally Friendly and Non-Toxic, Compliant and Worry-Free

Free of heavy metals, formaldehyde and volatile organic compounds (VOCs), complies with EU REACH, RoHS and Chinese national standards for building materials. It is non-toxic, tasteless and pollution-free, suitable for indoor home decoration, children’s rooms and hospital engineering, ensuring environmental safety and human health.

（2）Weather-Resistant and Lightfast, Long-Lasting and Stable

Excellent UV resistance, water resistance and aging resistance. After long-term outdoor exposure, it will not fade, peel off, powder or crack, and can maintain stable appearance and performance in high temperature, cold, rain and humid environments, greatly extending the service life of coating films.

（3）Acid and Alkali Resistant and Corrosion Resistant

Strong resistance to acid and alkali corrosion, compatible with water-based and solvent-based coating systems. It can resist erosion from rain, industrial acid rain and salt fog, effectively protecting the base layer of buildings and engineering structures, making it an ideal choice for coastal and chemical industry zone projects.

（4）Rich Texture and Strong Three-Dimensional Sense

Natural mineral particles and polymer composite structure create a rich, multi-level stone-like texture. It can simulate the natural texture of marble, granite and slate, and is available in a variety of colors and specifications, meeting the diverse aesthetic needs of high-grade interior and exterior decoration, showing high-grade and elegant decorative effects.

（5）Good Dispersibility and Convenient Construction

Uniform particle size, good compatibility with coating base materials, and no agglomeration during stirring. It can be directly mixed into stone-like paint, texture paint, water-based emulsion and other systems, suitable for spraying, rolling and brushing various construction processes, with simple operation and low construction threshold.

（6）Batch Stability and Controllable Quality

Formal manufacturers adopt ISO 9001 quality management system, strictly controlling color difference, particle size distribution, adhesion strength and weather resistance indicators of each batch. The product performance is highly consistent, avoiding construction quality problems and loss caused by unstable product quality.

3. Empowering All Industries: From Basic Building Materials to High-End Manufacturing, Covering All Sectors

（1）Building Decoration Coatings

Exterior wall stone-like paint: simulate natural stone texture, improve exterior wall durability and aesthetic effect;

Interior wall texture paint and art paint: enhance three-dimensional sense and texture, create high-grade home decoration space;

Water-based wood paint & furniture paint: improve scratch resistance and wear resistance, expand decorative diversity.

（2）Anti-Corrosion and Engineering Protection

Marine engineering coatings: resist salt fog and seawater corrosion, protect steel structures and ships;

Industrial equipment anti-corrosion paint: enhance chemical stability and service life of pipelines and mechanical parts;

Highway and bridge coatings: improve weather resistance and anti-aging performance of concrete structures.

（3）New Building Materials and Special Fields

Lightweight thermal insulation composite boards: composite with rock wool and foam concrete, improve thermal insulation and decorative performance;

Outdoor advertising and landscape engineering: rich colors and durable, suitable for outdoor landscape murals and advertising signs;

Automotive interior parts: as a functional additive for automotive interior coatings, enhance texture and scratch resistance.

4. Check Key Indicators: Focus on 3 Core Parameters

（1）Purity and Composite Ratio

Effective solid content ≥90%, polymer resin content ≥15% , ensuring bonding strength and flexibility;

Particle size range 10-80 mesh , color difference ΔE ≤2.0, avoiding uneven coating and color streaks;

Adhesion grade ≥1 level , weather resistance test  without fading, peeling or cracking, ensuring long-term use effect.

（2）Sample Testing: Small-Batch Testing to Verify Compatibility

Obtain free samples from suppliers, conduct mixing tests with actual coating systems (such as stone-like paint, emulsion paint) to observe dispersion uniformity, construction performance and decorative effect. For outdoor project applications, carry out accelerated weathering tests to confirm whether the product can meet the long-term use requirements of the project.

（3）Consider Service: Focus on Supply Chain and After-Sales Support

Confirm Supply Capacity：Whether the supplier has a standardized production line, supports large-volume orders, and the delivery cycle of conventional orders is controlled within 25 days; supports customized specifications (color, particle size) and 20kg/25kg/50kg customized packaging;

Check After-Sales Support：Whether professional technical guidance is provided, including dosage ratio, mixing process, construction precautions and matching coating base materials; whether returns and exchanges are supported for unqualified products caused by quality problems;

Platform Selection Tips：When purchasing on e-commerce platforms, select suppliers with “Factory Verification” and “Quality Assurance” labels, check buyer reviews, on-time delivery rate (preferably ≥97%), and customer service response time (≤2 hours), avoid informal suppliers with incomplete qualifications.