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Hexagonal Boron Nitride Powder (hBN Powder)
Hexagonal boron nitride powder, also known as hBN powder or white graphite, is a high-performance dry solid lubricant and advanced ceramic material with a layered hexagonal crystal structure. It is valued for low friction, high-temperature stability, thermal conductivity, electrical insulation, chemical inertness, and non-wetting behavior in demanding industrial and laboratory applications.
Lowerfriction supplies hexagonal boron nitride powder in multiple particle sizes for lubrication, mold release, thermal management, electrical insulation, coatings, polymers, ceramics, glass processing, molten metal handling, and advanced material development. Available hBN powder sizes include 70 nm, 0.5 micron, 1.5 micron, 5 micron, and 30 micron options.
Engineer / Procurement Summary: hBN powder is a white, electrically insulating dry lubricant material with chemical formula BN and CAS No. 10043-11-5. It is available from Lowerfriction in 70 nm, 0.5 micron, 1.5 micron, 5 micron, and 30 micron particle sizes. It is suitable for high-temperature lubrication, mold release, thermal management, electrical insulation, coatings, ceramics, polymers, glass processing, and molten-metal related applications.
Quick Product Data
| Common names | Hexagonal boron nitride powder, hBN powder, boron nitride powder, white graphite |
| Chemical formula | BN |
| CAS No. | 10043-11-5 |
| Appearance / form | White powder |
| Material type | Dry solid lubricant powder / advanced ceramic material |
| Density | Approx. 2.3 g/cm³ |
| Coefficient of friction | Reported range: 0.15 to 0.70, depending on grade, surface and operating conditions |
| Dielectric constant | 4 |
| Dielectric breakdown strength | 35 kV/mm |
| Thermal stability in air | Up to 1000°C |
| Thermal stability in vacuum | Up to 1400°C |
| Thermal stability in inert atmosphere | Up to 1800°C |
| Melting / dissociation point | About 3000°C, dissociates |
| Primary product use | Dry lubrication, mold release, thermal management, electrical insulation, coatings, polymers, ceramics, glass and metal processing |
| Brand | Lowerfriction Lubricants / MKnano |
Available Hexagonal Boron Nitride Powder Sizes
| SKU | Product / Grade | Purity | Average Particle Size | Suggested Use |
|---|---|---|---|---|
| MK-hBN-N70 | Hexagonal Boron Nitride Nanopowder / fine hBN powder | 99.5% | 70 nm | Nanomaterials, advanced coatings, fine dispersion, specialty research and premium formulations |
| MK-hBN-050 | Hexagonal Boron Nitride Powder | 99% | 0.5 micron | Coatings, fillers, dry lubrication, dispersion-sensitive applications |
| MK-hBN-150 | Hexagonal Boron Nitride Powder | 99.3% | 1.5 micron | General-purpose industrial use, lubrication, coating and additive systems |
| MK-hBN-500 | Hexagonal Boron Nitride Powder | 98% | 5 micron | Mold release, glass processing, metal processing and refractory applications |
| MK-hBN-3000 | Hexagonal Boron Nitride Powder | 98.5% | 30 micron | Coarser lubrication, refractory uses, release applications and high-temperature process environments |
| Custom / bulk | Application-specific hBN powder | Confirm on request | Custom / bulk sizing | Request custom size or bulk quotation |
Which hBN Powder Size Should I Choose?
| Application Need | Suggested Grade / Particle Size | Buyer Guidance |
|---|---|---|
| Nanopowder, fine dispersion or advanced coatings | 70 nm | Best for buyers who need very fine particle size, specialty research grade material, or improved dispersion in selected coating and composite systems. |
| Coatings, fillers and fine additive systems | 0.5 micron | Useful where a fine hBN powder is needed without moving fully into nanopowder handling and dispersion requirements. |
| General industrial dry lubricant powder use | 1.5 micron | A practical starting point for broad lubrication, coating and additive use cases. |
| Mold release, glass and metal processing | 5 micron | Suitable where hBN powder is used for non-wetting behavior, release performance and high-temperature process environments. |
| Coarser lubrication or refractory applications | 30 micron | Useful for applications where a coarser particle size is acceptable or preferred. |
| Unclear application or non-standard requirement | Custom / technical consultation | Share substrate, process temperature, carrier medium, surface finish target, quantity and end-use conditions before selecting a grade. |
Need help choosing an hBN powder grade? Contact Lowerfriction with your particle size, purity, quantity, carrier medium and application details.
What Is Hexagonal Boron Nitride Powder?
Hexagonal boron nitride is a white ceramic powder made of boron and nitrogen arranged in a layered hexagonal structure. Because of this structure, hBN powder provides lubricity similar to graphite while also offering electrical insulation, strong thermal stability, chemical resistance and low wettability to many molten materials.
These properties make hexagonal boron nitride powder useful in applications where components are exposed to heat, friction, molten metals, glass, aggressive process conditions or electrically sensitive environments. Unlike graphite, hBN can provide lubricity while remaining electrically insulating, which makes it attractive for electronics, thermal management and specialty coating systems.
Why Choose Hexagonal Boron Nitride Powder?
- Low-friction dry lubricant behavior for high-temperature and specialty lubrication applications.
- Electrical insulation combined with thermal conductivity for heat dissipation and electronics-related uses.
- Non-wetting behavior against many glasses, salts and molten metals, supporting release and process applications.
- Chemical inertness and resistance to chemical attack in demanding industrial environments.
- Multiple particle sizes for different dispersion, coating, mold release, refractory and research requirements.
- Suitable as a functional filler in coatings, polymers, ceramics, resins, rubbers and engineered materials.
Key Properties of hBN Powder
| Property | Performance Direction |
|---|---|
| Lubricity | Provides dry solid lubrication and low-friction surface behavior. |
| Electrical insulation | Acts as an electrical insulator while still supporting heat dissipation. |
| Thermal conductivity | Useful as a thermally conductive filler in selected composites and coatings. |
| High-temperature stability | Stable in air, vacuum and inert atmosphere across demanding temperature ranges. |
| Non-wetting behavior | Resists wetting by many glasses, salts and most metals. |
| Chemical resistance | Chemically inert and resistant to many aggressive environments. |
| Low thermal expansion | Useful in applications where dimensional stability matters. |
| Machinability in hot-pressed form | Hot-pressed boron nitride structures can be machined into complex shapes. |
Application Clusters
hBN Powder for High-Temperature Dry Lubrication
Hexagonal boron nitride powder can be used as a dry lubricant where conventional liquid lubricants are not suitable because of heat, contamination concerns or process conditions. It may be used as a dry powder, coating additive, or lubricant additive depending on the application.
- Useful for high-temperature lubrication environments.
- Can be applied as a dry powder or dispersed in compatible carrier systems.
- Relevant for industrial equipment, process tooling and specialty surfaces where dry lubricity is needed.
hBN Powder for Mold Release
hBN powder is widely selected for mold release because of its lubricity, high-temperature stability and non-wetting behavior. It can help release parts from plastic, metal, refractory and glass-forming molds when properly selected and applied.
- Useful for plastic injection and metal injection mold release use cases.
- Can support release performance in refractory molds and glass-forming applications.
- Particle size should be selected based on surface finish, coating thickness and application method.
hBN Powder for Thermal Management
Because hBN powder combines thermal conductivity with electrical insulation, it is used as a functional filler in thermal management materials. It can support heat dissipation in coatings, composites and engineered material systems where electrical insulation is important.
- Useful for thermally conductive, electrically insulating composites.
- Relevant for electronics, polymers, coatings and specialty materials.
- Fine particle grades may be preferred where dispersion and surface finish matter.
hBN Powder for Electrical Insulation and Electronics
Hexagonal boron nitride powder is an electrically insulating material, making it useful in electronics and electrically sensitive applications. It can be used in filler systems, coatings, substrates and specialty materials where insulation and thermal performance are both important.
- Supports electrical insulation in selected engineered systems.
- Can be used in semiconductor-related and electronics-adjacent applications.
- Useful where graphite-like lubricity is needed without electrical conductivity.
hBN Powder for Coatings, Ceramics, Polymers and Composites
hBN powder can be incorporated into coatings, paints, ceramics, polymers, resins, rubbers and other engineered materials as a functional filler. It may improve lubricity, release performance, thermal behavior and chemical durability depending on the formulation.
- Suitable for lubricating coatings and protective surface coatings.
- Can be used as a filler in polymers, ceramics and composite systems.
- Application testing is recommended to validate dispersion, loading level and final performance.
hBN Powder for Glass and Molten Metal Processing
The non-wetting and chemically resistant behavior of hBN powder makes it useful in process environments involving glass, molten metals and high-temperature materials handling. It may be used in crucibles, boats, reaction-vessel linings, thermocouple protection applications and related process components when properly engineered.
- Useful where non-wetting behavior is required.
- Relevant for glass manufacturing and high-temperature process environments.
- Can support components exposed to molten materials, salts or aggressive processing conditions.
Applications of Boron Nitride Powder
| Application Area | How hBN Powder Is Used |
|---|---|
| Dry lubrication | Reduces friction in high-temperature and specialty environments. |
| Mold release | Helps release parts from plastic, metal, refractory and glass-forming molds. |
| Thermal management | Used as a thermally conductive, electrically insulating filler. |
| Coatings | Added to lubricating, release and protective surface coatings. |
| Electrical insulation | Used in electronics and electrically sensitive material systems. |
| Ceramics and polymers | Added as a functional filler in engineered materials. |
| Glass processing | Useful where non-wetting behavior and release performance are needed. |
| Molten metal processing | Relevant for selected metal handling, refractory and high-temperature process applications. |
hBN vs MoS2 vs WS2 vs Graphite
| Material | Best-Fit Use Direction | Key Difference / Selection Note |
|---|---|---|
| hBN powder | High-temperature lubrication, mold release, thermal management, electrical insulation and non-wetting process applications | Strong choice when electrical insulation, temperature resistance and release behavior are important. |
| MoS2 powder | High-load dry lubrication, grease/oil additives, coatings, polymers and vacuum-related applications | Often selected when load-bearing ability and dry film lubricity are the main requirements. |
| WS2 powder | Advanced dry lubrication and applications needing very low friction at small particle sizes | Useful comparison material for buyers evaluating premium solid lubricant powders. |
| Graphite powder | General dry lubrication where environmental moisture is present and electrical conductivity is acceptable | Common dry lubricant, but it is electrically conductive and behaves differently from hBN in insulating applications. |
Product Documents
Download hBN Powder Product Brochure | Download hBN Powder Safety Data Sheet
Safety and Handling Information
Safety Disclaimer: This summary is provided for quick product evaluation only. Always review the latest Safety Data Sheet before handling, storage, transport or workplace use.
| Safety Area | Page Wording |
|---|---|
| Classification summary | According to the available safety documentation, hexagonal boron nitride powder is not classified as a dangerous substance or mixture according to GHS. |
| Product use | Supplied for industrial use and laboratory research purposes. |
| Powder handling | Avoid unnecessary dust generation and avoid inhaling powder dust. |
| Eye protection | Use safety glasses or suitable eye protection where dust exposure is possible. |
| Hand protection | Use gloves where required by workplace procedures. |
| Ventilation | Use local exhaust or suitable ventilation where dust may be generated. |
| Storage | Keep container closed and store in a dry area according to SDS guidance. |
| Transport note | Current product listings describe hBN powder as a non-hazardous product; shipping selection should follow the online order form and latest SDS. |
Frequently Asked Questions
What is hBN powder?
hBN powder is hexagonal boron nitride powder, a white ceramic dry lubricant material made from boron and nitrogen in a layered hexagonal structure.
Is hexagonal boron nitride the same as hBN?
Yes. hBN is the short form of hexagonal boron nitride. It is also commonly called white graphite because its layered structure provides graphite-like lubricity.
What is hexagonal boron nitride powder used for?
Hexagonal boron nitride powder is used for dry lubrication, high-temperature lubrication, mold release, thermal management, electrical insulation, coatings, ceramics, polymers, glass processing and molten-metal related applications.
Do you offer hBN nanopowder?
Yes. Lowerfriction offers a 70 nm hexagonal boron nitride nanopowder / fine hBN powder option for applications requiring very fine particle size and dispersion.
Which hBN powder particle sizes are available?
Available hBN powder sizes include 70 nm, 0.5 micron, 1.5 micron, 5 micron and 30 micron options. Custom or bulk requirements may be available on request. Contact Lowerfriction to discuss your requirements.
Which hBN powder size should I choose?
For nanopowder and fine dispersion requirements, 70 nm may be suitable. For coatings and fillers, 0.5 micron may be useful. For general industrial use, 1.5 micron is a practical starting point. For mold release and process applications, 5 micron or 30 micron may be preferred depending on surface finish and application method.
Is boron nitride powder electrically insulating?
Yes. One of the key advantages of boron nitride powder is that it offers electrical insulation while also supporting heat dissipation.
Is hBN powder suitable for high-temperature applications?
Yes. Hexagonal boron nitride powder is used in high-temperature lubrication and process environments because of its thermal stability in air, vacuum and inert atmospheres.
What is the difference between hBN powder and graphite powder?
Both materials can provide dry lubricity, but hBN powder is electrically insulating while graphite is electrically conductive. hBN is often selected when insulation, thermal stability or non-wetting behavior is required.
Can hBN powder be used for mold release?
Yes. hBN powder is used as a mold release material in plastic, metal, refractory and glass-forming applications because of its lubricity, high-temperature stability and non-wetting behavior.
Can I order custom quantities or request technical help?
Contact Lowerfriction with your application details, target particle size, purity requirement, quantity, carrier medium and operating conditions for grade selection or bulk quotation support.
Order Hexagonal Boron Nitride Powder
To order hexagonal boron nitride powder, request pricing for larger pack sizes, or discuss the right hBN powder grade for your application, contact Lowerfriction at sales@lowerfriction.com or call +1 416-509-4462.