Micronized graphite powder
Micronized graphite powder is a ready-to-use functional material designed for customers who value clear specifications, stable supply, and easy selection. It is widely applied as a lubricant additive, conductive filler, and performance enhancer in coatings, polymers, and energy-related systems. The product is supplied in standardized grades, allowing fast comparison and confident ordering.
Product Definition
Micronized graphite powder is produced by mechanically milling high-purity natural or synthetic graphite, followed by precision air classification. The result is a fine, free-flowing powder with controlled particle size, consistent carbon content, and reliable performance across batches.
This material is intended for direct industrial use, not experimental processing. Customers typically select it based on particle size, purity, and application environment.
Standard Specifications (Quick Selection)
To simplify purchasing, micronized graphite powder is commonly offered in the following standard grades:
Particle Size Options (D50)
3 μm – ultra-fine, high surface area
5 μm – fine grade for coatings and lubricants
10 μm – general-purpose industrial grade
15 μm – cost-effective grade for bulk applications
Custom particle size distributions are available upon request.
Typical Technical Parameters
| Property | Standard Range |
|---|---|
| Fixed Carbon | ≥ 95% / ≥ 98% / ≥ 99% |
| Ash Content | ≤ 0.5% (depending on grade) |
| Moisture | ≤ 0.5% |
| Bulk Density | 0.2–0.6 g/cm³ |
| Shape | Plate-like / fine lamellar |
Actual values vary slightly by grade; full data sheet available before order confirmation.
Key Benefits for Buyers
Easy Dispersion
The controlled micron-scale particle size allows uniform dispersion in oils, greases, resins, and coatings. This reduces mixing time and minimizes agglomeration issues during production.
Stable Performance
Consistent raw material selection and classification ensure repeatable lubricity, conductivity, and thermal behavior. This matters when reordering the same grade for long-term production runs.
Flexible Cost Control
Multiple grades are available to balance performance and budget. Customers do not need to over-specify ultra-fine powder when a standard grade will meet functional requirements.
Broad Compatibility
Micronized graphite powder is compatible with:
Mineral and synthetic oils
Epoxy, phenolic, and silicone resins
Rubber and plastic matrices
Water-based and solvent-based systems
Common Ordering Applications
Lubricants & Greases
Used as a solid lubricant additive to improve load resistance and reduce wear under high temperature or pressure.
Industrial Coatings
Applied in conductive coatings, anti-corrosion coatings, and mold-release formulations for smoother films and stable conductivity.
Polymers & Rubber
Added as a functional filler to enhance conductivity, dimensional stability, and friction performance.
Battery & Energy Components
Used as a conductive additive where consistent particle size and purity are required.
Metallurgical Processing
Functions as a carbon additive, release agent, or processing aid in powder metallurgy and casting.
Packaging Options
To support different purchasing volumes, micronized graphite powder is supplied in:
20 kg / 25 kg bags (standard export packaging)
500 kg / 1,000 kg bulk bags
Custom packaging available upon request
All packaging is moisture-resistant and suitable for international shipping.
Quality and Supply Assurance
Each batch is produced under controlled milling and classification conditions, with routine inspection of particle size distribution, carbon content, and ash level. Documentation such as COA and technical data sheets can be provided with shipment.
Suppliers like Gotrays focus on grade consistency, which helps customers reorder the same specification without repeated testing—an often overlooked but critical advantage.