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MPN: MLHBN1
Brand: MicroLubrol
HEXAGONAL BORON NITRIDE POWDER ULTRA FINE GRADE 0.5 micrometer (1/2 micron, 1/2 µm) average particle size The finest grade for lubrication "Fluffier," more flowable and better for tumbling than higher micron grades **FRESH** 1 ounce (1.00 oz. / 28,3 gm.) in a CONVENIENT and DURABLE Double Wall Polypropylene Plastic Jar w/ Lined Cap for Secure and Moisture-Protected Closing (very small particle size hBN is hygroscopic, meaning it tends to absorb moisture and form clumps in long-term storage, so it ... moreis important to store it in a tightly sealed container like the one offered here). WHAT IS HEXAGONAL BORON NITRIDE? Hexagonal Boron Nitride, also known as just Boron Nitride or hBN and sometimes called "white graphite," is a chemical compound that is produced from boron compounds in a high temperature reaction. It is one of the most lubricious materials known. With a coefficient of friction as low as 0.15, and being "cleaner" to use than molybdenum disulfide and tungsten disulfide, it is a superb dry lubricant for many applications, particularly bullet and gun barrel coating. HOW DOES HEXAGONAL BORON NITRIDE WORK? Like Molybdenum Disulfide and Tungsten Disulfide, Hexagonal Boron Nitride is a "lamellar" or flake type solid. The flat, parallel hexagonal plates formed by the crystalline structure of hBN provide lubrication action due to their very shape, as the hBN micro flakes (see image below) slide one over the other similarly to how the cards in a brand new deck of playing cards being shuffled all over a table slide very easily one over another. The sub-micron particles help smooth over even the smallest crevices on a surface so the hBN fully impregnates the surface where it is applied and remains there, maintaining effective lubrication. In addition, the high load-carrying capacity of hBN means that it can withstand greater impact force than other lubricants. WHERE IS HEXAGONAL BORON NITRIDE BETTER SUITED THAN TUNGSTEN DISULFIDE OR MOLYBDENUM DISULFIDE? In bullet coating, of course. The U.S. Air Force Academy recently conducted experiments measuring the effectiveness of coating bullets with Molybdenum Disulfide, Tungsten Disulfide, Hexagonal Boron Nitride, and Lubalox (marketed by Winchester). On tests on 55 Nosler Ballistic Tip (55 NBT) bullets (jacketed lead with a plastic tip), the report states: "HBN reduced friction on the 55 NBT by 15%. The WS2 and MS2 resulted in 7% and 19% INCREASES (emphasis ours) in work done by friction respectively. Lubalox increased the friction by 4%." The report concludes that: "Given the time and expense of coating bullets, the reduction in friction is not cost effective for most applications," which may make sense for the armed forces, but we're certain that competitive shooters and sportsmen will probably disagree, which is why we offer our MICROLUBROL Hexagonal Boron Nitride Powder product. ULTRA FINE 0.5 MICRON GRADE IS REALLY FINE, BUT IS FINER BETTER? Although a finer grade, sometimes referred to as "nano" grade, is available (at a horribly expensive price!), for the overwhelming majority of dry lubrication applications it is not necessary to use a finer grade. The hBN powder, like graphite, has an extremely low hardness and will be worked well into even the smallest imperfections of the friction areas by the friction of the moving surfaces themselves. And we are not aware of any application where "nano" size hBN has been proven to be better than sub-micron grade hBN for lubrication. BUT, there is an EXTREMELY GOOD reason NOT to use a finer grade: SAFETY. The hexagonal boron nitride grade finer than 0.4 to 0.6 micron falls into the "nanoparticle" range, so called because the average particle size (APS) is in the 1 to 100 "nanometer" range (1 nanometer = 1 BILLIONTH of a meter). A lot has been reported recently in the news about nanoparticles in scientific breakthroughs and high technology products, and nanoparticles are being used in some pretty unique and amazing applications, but nanoparticles must be handled under very special conditions to avoid safety issues. Nanoparticles, regardless of the material they are made of, are so small that they can actually penetrate human skin on contact and be absorbed into the bloodstream. They also become airborne very easily and often undetectably, and if aspirated they can immediately enter the bloodstream in the lungs or if absorbed in the eyes. These effects are NOT an exaggeration, and are documented by many sources online. Rubber gloves may only offer limited protection against nanoparticles, and a high efficiency dust mask like those rated as "N95" or even safety goggles may not offer enough protection against airborne nanoparticles. For these reasons, we strongly believe that it is inadvisable for any individual, even for industrial users, to handle "nano" grade hexagonal boron nitride powder, or ANY "nano" grade material for that matter, without proper environmental controls and adequate personal protection. FEATURES: - Compatible with ALL metals, ALL plastics and elastomers, water, solvents, fuels, oils, paints, plastic resins - Superior thermal stability - Non-combustible - Resistant to oxidation at high temperatures - Extreme load carrying ability - Low coefficient of friction: 0.15 - Chemically inert in lubrication applications - Lubricates extremely well under all conditions: heat, cold, pressure, vacuum and high loads - Compatible with other lubricants - 0.5 micron grade is best for dry lubrication and coating of metal parts NOTE: The Hexagonal Boron Nitride (hBN) product offered here is NOT cosmetic grade and has not been tested for use in cosmetics or any other regulated use. SPECIFICATIONS: - Material: Hexagonal Boron Nitride (hBN, boron nitride, "white graphite") - Purity: 98% - Average Particle Size (APS): 0.5 micrometers (microns, µm, micrometers), approximately 12000 mesh equivalent ("mesh" is a measure of the fineness of a material separation screen, but due to the impossibility of weaving such fine wires or filaments to produce such a fine screen there are no actual screens with mesh finer than 600 available, so the number is for relative particle size comparison only). - Color: White - Coefficient of Friction (COF): as low as 0.15 - Density: 2.3 gms/cc - Hardness: Approx. 1-2 on Moh's hardness scale MICROLUBROL™ - LUBRICATION FOR MOTION™ MicroLubrol, LLC is a supplier and manufacturer of ultra-high quality lubricants for specialty applications. We specialize in lubricants for scientific, precision, hobby and sports equipment which, due to modern technological advances, have reached unparallelled levels of sophistication in materials and component precision that we strive to match with the lubricant products we provide for them. We pride ourselves in using the highest quality and highest technology lubricant products to provide the highest level of performance for each and every application. The correct choice of lubricant for your equipment will insure that it is utilized to its highest possible level of efficiency and performance. We supply serious lubricants for serious applications. MICROLUBROL™ is a trademark of MicroLubrol, LLC. BUYERS: Please be aware that changes to eBay rules and metrics make your STARS feedback ratings ultra-important to sellers. Our ability to conduct business on eBay and our profitability are strongly influenced by your ratings and we ask for your care and consideration when rating our performance. We thank you for your business and hope to again be of service to you in the future. TERMS & CONDITIONS By bidding and paying for this Item, the Bidder/Buyer agrees to the following TERMS & CONDITIONS: Buyer must determine own usability. Listing description is correct to the best of our knowledge at the time of listing and Seller is not responsible for errors or omissions in the listing information. Unless otherwise stated, data and specifications given are taken from information found on the Item, in the literature accompanying the Item, or from the website of the manufacturer or a distributor of the Item. In any and all cases, Seller's liability is limited to the amount of the winning bid paid and does not include any direct, indirect, incidental or miscellaneous damages, or any other damages, inconveniences, costs or expenses. The Bidder/Buyer agrees to assume all responsibility and risk regarding the safety, suitability of use and legal requirements concerning ownership, storage, installation, operation and use of the Item and to hold Seller harmless and free of all liability regarding the safety, condition, usability, installation, use, maintenance, disposal, legality and suitability of use and any other issues regarding this Item. Item is a commercial and industrial industrial use product intended for installation and use by qualified personnel and can cause injury or damage if improperly used or installed. Proper and safe installation and operation is the sole responsibility of the Buyer. Buyer is urged to consult the original manufacturer of the equipment in which the Item will be used for installation, safety, maintenance and operating instructions which may also be available online at the manufacturer’s website. In any and all cases, Seller's liability is limited to the amount of the winning bid paid and does not include any direct, indirect, incidental or miscellaneous damages, or any other damages, inconveniences, costs or expenses. Please contact us by email if you have any questions or need clarifications on the listed information. Please include the listing number or description in your email. Note that if you wait until the last day, we may not be able to get back to you before the auction closes. We will do our best to answer all questions accurately and promptly. We greatly value our customers and our reputation and will work diligently with customers to achieve our goal of mutual satisfaction and positive feedback on every transaction. Buyer pays shipping cost as stated. USPS First Class Mail and USPS First Class Mail International are our shipping methods of choice for this Item. If paying by PayPal, we will ship to the address associated with the PayPal payment unless prior arrangement is approved by us. If paying by other than PayPal, please send your shipping address including zip code and delivery contact phone number as soon as you are notified that you are the winning bidder. Payment via PayPal is preferred. Major credit cards accepted through PayPal. VISA / MC also accepted via our own merchant account (for security pls. CALL us w/ CC info - DO NOT EMAIL CC INFO). Payment upon pick-up is acceptable w/ prior notice. International customers must pay in USD$ only. Contact us immediately if you have any questions regarding payment options. We make every effort to ship within 3 business days after payment is received. If payment is not received within 7 days after email notification to Buyer of amount due, transaction is subject to being reported as failed for non-payment and the Item being sold to another buyer. Please contact us as soon as possible if you have questions regarding payment. WE SHIP INTERNATIONALLY but, due to delivery problems, not to some locations. Bidders in a location that we do not show a shipping option for, please contact us BEFORE bidding. TO OUR INTERNATIONAL CUSTOMERS: ALL INTERNATIONAL customs clearances and import taxes and fees are the sole responsibility of the Buyer at destination. Re-shipping of items returned to us as undeliverable by foreign post authorities will require re-payment of shipping costs to re-ship. Thank you for considering our products! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.
$
120.00
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