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A high-purity, ultra-fine hexagonal boron nitride (h-BN) powder (1–5 μm) engineered for advanced thermal management, lubrication additives, and high-temperature coating applications. Its optimized particle size delivers exceptional thermal conductivity, smooth surface finish, and outstanding dispersion—ideal for high-performance formulations in thermal greases, high-temperature lubricants, release coatings, electronic encapsulants, advanced ceramics, and polymer compounding.
Its ultra-fine structure ensures uniform integration even in low-viscosity systems, enhancing stability and performance across diverse matrices. GPBN-1005 also offers superior oxidation resistance, chemical inertness, and low dielectric constant, making it an excellent choice for electronics, automotive, aerospace, and engineering plastics. It is highly recommended for industries requiring consistent quality, long-term durability, and high-performance functional fillers.
BN,h-BN, White Graphite
24.82 g/mol
10043-11-5
233-136-6
2850 00 20
Not regulated (non-hazardous solid)
White, odorless crystalline powder
>99%
Hexagonal
2.20–2.30 g/cm³
~2 (soft, lubricious)
>1800–2000 °C
Boosts heat dissipation in epoxies, silicones, and potting compounds while preserving dielectric strength for LEDs, EV power modules, and RF devices.
Provides clean, non-carbonizing lubrication up to ~900 °C in air (higher in inert atmospheres), reducing friction in bearings, slides, and sintering fixtures.
Forms a chemically inert barrier that resists wetting by aluminum, magnesium, and glass, enabling easy release of casts, billets, and glassware.
Creates thermally stable, low-friction surfaces on dies and molds to minimize soldering/pick-up, improve surface finish, and extend tool life.
In TIM pads, greases, and gels, platelets align to create heat-spreading pathways without adding electrical conductivity.
Disperses into binders to yield smooth, low-energy surfaces on chutes, hoppers, and cutting tools for clean release and easier cleanup.
Protects graphite and ceramic refractories from attack and sticking in foundries, brazing, and high-temp heat-treating lines.
Lowers density and mold shrinkage, improves abrasion resistance, and adds slip in engineering thermoplastics, PU, and elastomers.
Provides silky slip, optical soft focus, and sebum control in premium skin-care and color formulations.
| Property | Unit | Typical Values |
|---|---|---|
| Product Name | – | Boron Nitride Powder |
| Grade Ref. | – | GPBN 1005 |
| Crystal Structure | – | Hexagonal, Flakes, Spherical |
| BN Purity | wt % | ≥ 99% |
| B₂O₃ Content | wt % | ≤ 0.5–1.0% |
| Oxygen Content | wt % | ≤ 1.0–2.0% |
| Typical Impurities (Fe, Ca, Si, etc.) | ppm | ≤ 100–300 ppm |
| Particle Size Range | µm | 1–3 µm |
| Specific Surface Area (BET) | m²/g | 6–8 m²/g |
| Density | g/cm³ | 2.25 g/cm³ |
| Moisture Content | wt % | ≤ 0.2–0.5% |
| Loss on Ignition (LOI, 1000°C) | wt % | ≤ 1.0–2.0% |
| Color | – | White |
| Odor | – | Odorless |
| pH (aqueous slurry) | – | 7–9 |
| Thermal Conductivity (in-plane) | W/m·K | 300–400 W/m·K |
| Coefficient of Thermal Expansion | 10⁻⁶/K | 1–4 (in-plane); 30–40 (through-plane) |
| Electrical Resistivity | Ω·cm | ≥ 10¹² Ω·cm (at RT, dry) |
| Dielectric Constant (1 MHz) | – | 3–4 |
| Dielectric Strength | kV/mm | 15–30 kV/mm (dense body) |
| Maximum Use Temperature (Air) | °C | 900–1000°C |
| Maximum Use Temperature (Inert) | °C | Up to 1800°C |
| Coefficient of Friction (BN film) | – | 0.15–0.25 |
| Solubility | – | Insoluble in water & most solvents |
| Chemical Resistance | – | Excellent vs. most acids & molten metals |
Enables efficient heat dissipation in polymers and electronics.
Excellent for high-voltage and semiconductor applications.
Reduces friction under high pressure and temperature.
Stable against acids, alkalis, and molten metals.
Performs reliably up to 900 °C in air and 2000 °C in inert atmospheres.
Prevents adhesion of molten metals and glass.
Ideal for high-frequency and dielectric applications
Non-flammable and non-explosive.
Does not support combustion.
Stable under normal conditions.
May react with strong oxidizing agents or halogens at elevated temperatures.
Fine powder may cause mechanical irritation to the respiratory tract.
Prolonged inhalation of dust should be avoided.
Long-term exposure to airborne dust could lead to respiratory discomfort or dryness but no known systemic toxicity.
Use dust mask or NIOSH-approved respirator.
Wear protective gloves, safety goggles, and suitable lab clothing.
Use local exhaust or general ventilation to minimize airborne dust.
Avoid creating airborne dust.
Sweep up material gently and collect in labeled container for disposal.
Do not wash to drain.
Store in a cool, dry, well-ventilated area. Keep container tightly closed to prevent moisture absorption or contamination.
Use extinguishing media suitable for surrounding fire (BN itself is non-combustible).
Firefighters should wear self-contained breathing apparatus (SCBA) if powders are airborne.
Not classified as dangerous goods (per UN, DOT, IMO, IATA).
Safe for transport under general conditions.
Store in a cool, dry, and well-ventilated area away from moisture and direct sunlight.
Maintain ambient temperatures below 40 °C and relative humidity below 60%.
Avoid exposure to high humidity, as moisture can cause powder clumping and affect flow properties.
Keep material in tightly sealed containers made of plastic, fiber drum, or lined metal.
Reseal opened containers immediately after use to prevent contamination and moisture absorption.
Clearly label containers with product name and batch number.
Store away from strong oxidizers, acids, or halogen compounds that could react under high temperature.
Avoid storing near combustible materials even though BN is non-flammable.
Handle powders in a dust-controlled area or under local exhaust ventilation.
Avoid generating airborne dust during transfer or mixing.
Use clean, dry tools to prevent contamination
Supplied in 5 Kg and 25 Kg HDPE drums, fiber drums, or laminated kraft paper bags
Available in 500 kg or 1000 kg jumbo bags (FIBCs) with moisture-barrier inner liners.
Palletized and shrink-wrapped for stability and safe handling during transport.
Smaller packs (e.g., 1 kg) available for R&D or laboratory use.
Customized labeling and private branding offered upon request.