Add green silicon carbide powder to the coatings, the key lies in its high hardness, chemical inertness, high thermal stability, high thermal conductivity, low expansion, etc. These properties can comprehensively enhance the key performance of the coating, such as wear resistance, corrosion resistance, high-temperature resistance, thermal conductivity, anti-slip property, weather resistance, insulation/conduction, etc. At the same time, it also optimizes the construction process and cost.
1. Significantly Improved Wear Resistance (Core Benefit) With a Mohs hardness of 9.4–9.5 (second only to diamond), it forms a dense, hard granular layer in the coating, resisting scratches, crushing, and erosion.
Typical Effect: Adding 10%–20% increases the wear life of epoxy flooring/industrial anti-corrosion coatings by 40%–100%, significantly enhancing scratch resistance.
Applications: Floor paints, mechanical wear-resistant coatings, pipeline anti-corrosion, ship decks, conveyor belt coatings.
2. Enhanced Chemical Corrosion Resistance
Extremely chemically inert, resistant to most acids, alkalis, salts, and organic solvents at room temperature, and does not react with corrosive media.
Fills coating pores, forming a physical barrier to prevent corrosive media from penetrating the substrate; when combined with zinc powder/epoxy, it can extend the anti-corrosion period.
Applications: Chemical anti-corrosion, tank lining, wastewater treatment, marine heavy-duty anti-corrosion.
3. High Temperature Resistance and Thermal Stability
Withstands temperatures up to 1600℃+ with an extremely low coefficient of thermal expansion (≈4.0×10⁻⁶ K⁻¹), reducing thermal stress cracking.
A SiO₂ protective film forms on the surface at high temperatures, providing oxidation and thermal shock resistance, preventing coating peeling and powdering.
Applications: High-temperature equipment, kilns, exhaust pipes, fire-retardant coatings, high-temperature insulating coatings.
4. Highly Efficient Thermal Conductivity/Dissipation
Thermal conductivity ≈120–150 W/(m·K) (approximately 1/3 that of copper and 10–20 times that of ordinary fillers), enabling rapid heat dissipation.
Effect: Adding 15%–25% increases coating thermal conductivity by 2–3 times, reducing equipment/LED operating temperature by 8–10℃.
Applications: Electronic heat dissipation coatings, LED packaging, motor insulation, thermal management coatings.
5. Improved Anti-slip and Surface Properties
The rough particle surface increases the coating’s coefficient of friction, creating an anti-slip surface. Uniform particle size and good suspension optimize leveling, reduce pinholes, improve hiding power, and reduce resin/dispersant usage.
Applications: Flooring, stairs, ship decks, anti-slip road markings.
6. Enhanced Weather Resistance and Anti-aging: High UV reflectivity/absorption delays coating fading, chalking, and yellowing, extending outdoor lifespan.
Low oil absorption and low shrinkage improve coating volume stability and reduce cracking and peeling.
Applications: Exterior wall coatings, outdoor steel structures, road markings, photovoltaic backsheet coatings.
7. Special Functions: Conductive/Insulating/Electromagnetic Shielding:
High-purity green silicon carbide has high resistivity and can be used as a high-temperature insulating coating.
Appropriate addition can form a conductive network for static dissipation, electromagnetic shielding, and anti-static flooring.
8. Cost Reduction and Efficiency Improvement: As a functional filler, it can replace part of the resin, reducing VOCs and costs while improving performance.
Improves application rheology, making it easy to mix, easy to apply, and reducing sagging.
green silicon carbide powder 400#：
