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This section provides an overview for diamond slurries as well as their applications and principles. Also, please take a look at the list of 7 diamond slurry manufacturers and their company rankings. Here are the top-ranked diamond slurry companies as of June, 2025: 1.Interstate Abrasive, Inc., 2.Reade Advanced Materials, 3.Dongguan Jinyan Precision Grinding machinery Manufacturing Co., Ltd..
Table of Contents
Diamond Slurry is a slurry containing small-sized diamond particles.
Generally, a slurry is a fluid with viscosity. It is a mixture of liquid and mineral particles or other substances, and has the appearance of flowing muddy water. The particles are dispersed in the liquid.
Diamond particles are quite small in size, on the order of micrometers (μm). Diamond Slurry is mainly used in abrasive applications due to the hardness of the diamond particles.
The main ingredients are diamond particles and a liquid in which the particles are dispersed. Diamond Slurry is classified into several types depending on the type of diamond particles in the mixture. The liquid in which Diamond Slurry is mixed also has different properties, such as being water-soluble or oil-based.
Diamond Slurry is used during the operation of polishing equipment for precision polishing processes. Diamond Slurry is fed between the workpiece to be polished and the abrasive.
Mono-crystalline diamond is prone to cracking in certain directions, but has the advantage of being artificially produced at a relatively low cost. Therefore, monocrystalline diamond slurries are used to polish workpieces that are not extremely hard.
Polycrystalline diamond, on the other hand, is less prone to cleavage and has very good wear resistance. Therefore, polycrystalline diamond slurries can be used to polish ultra-hard materials without much scratching. It is used for polishing very hard materials such as lenses, hard disks, ceramics, gemstones, and superalloys.
When Diamond Slurry is used in the polishing process, tiny diamond particles come into strong contact with the surface of the object and are polished.
The abrasiveness of Diamond Slurry is not only determined by the type of diamond particles, but also by the properties of the liquid in the slurry, the properties of particles other than diamond particles, and the viscosity of the slurry.
Liquids include water-soluble liquids with high detergency and oil-based liquids with corrosion resistance, etc., and the appropriate liquid is selected for each application.
The following types of Diamond Slurry exist. It is important to select the right one for your application in order to use it effectively.
Mono-crystalline Diamond Slurry contains fine particles of mono-crystalline diamond. Since each monocrystalline diamond particle is made up of a single crystal block, it tends to break along the direction of the crystal. Although they are somewhat fragile when strong force is applied, the broken ends tend to be sharp and can exhibit high polishing power.
Mono-crystalline diamonds can be manufactured artificially at relatively low cost. They are used more frequently in industrial applications than natural monocrystalline diamond.
Polycrystalline Diamond Slurry contains fine particles of polycrystalline diamond. Polycrystalline diamond is formed by aggregating small crystalline masses. Since many crystals are oriented in different directions, they are resistant to cracking and peeling even when subjected to force from all directions.
Polycrystalline diamond is produced by sintering graphite under high temperature and high pressure.
In addition to the above types, there are also nanodiamond slurry, RCD diamond slurry, and others.
Nano Diamond Slurry contains smaller diamond particles and thus has better dispersion stability, while RCD Diamond Slurry is made of specially processed mono-crystalline diamond particles with properties similar to polycrystalline diamond.
*Including some distributors, etc.
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Advanced Abrasives Corporation is based in Pennsauken, New Jersey, USA, and is a manufacturer of monocrystalline and polycrystalline diamond compounds. The company provides a broad product portfolio that includes diamond powder, aluminum oxide, boron carbide, cerium oxide, and silicon carbide. The products are used in various industries, including electronics and photonics for device mounting and precision grinding, as well as industrial and medical applications such as superabrasive tools and grinding wheels. The company caters to various industries, including medical, laboratories, electronics, metallography, and petrography.
Precision Surfacing Solutions is a manufacturer of precision surface finishing equipment founded in 1984 with major offices in Mount Prospect, Illinois, USA and Rendsburg, Germany. The company is the parent of nine brands, notably Lapmaster, Peter Wolters, Barnes, and Kehren, specializing in surface profile finishing, flat finishing, and bore finishing. The grinding, lapping, polishing, and honing machines they offer alongside consumable abrasive products and accessories have applications in various industries including automotive, aerospace, electronic, and semiconductors.
LAPMASTER WOLTERS’s roots go back as far as 1804 with the founding of Peter Wolters. Lapmaster was founded in Chicago in 1948 as a manufacture of lapping and polishing machines for the mechanical seal market, Lapmaster has grown to a worldwide solution provider for more than 20 industries like precision optics and advanced materials. Lapmaster serves many industries including automotive, semiconductor, electro optics, and medical devices. Lapmaster also sells many consumables including abrasive powders, lapping compounds diamond lubricants, and composite plates. Products include lapping, polishing, bore honing, buffing, grinding, and special purpose machines.
Interstate Abrasives is based in Chicago, Illinois. Interstate abrasives is a distributor for manufacturing including grinding and machining applications. Interstate Abrasives operates in 4 product categories, abrasives, coolants, diamonds/CBN, and general industrial supplies. Interstate abrasives works with grain types such as aluminum oxide, silicon carbide, ceramic, zirconia, glass, slurries, and finishing compounds. Bond types include vitrified, resinoid, rubber, plastic, epoxy, and shellac bonds. Cutting and carbide tools include saw blades, diamond and dressing tools, honing sticks and stones, steel and nylon brushes, and filter systems. Metal working fluids include coolants, cleaners, lubricants, and rust preventatives.
READE was originally established in Wolverhampton, England in 1773 as a pharmaceutical chemical and varnish manufacturer. Today READE is based in Riverside, Rhode Island in the United States and is an ISO 9001-certified distributor of specialty chemical solids. READE Advanced Materials offers a selection of hundreds of materials and compounds ranging from alloys in various forms to oxides, sulfides, individual elements, and specialty compounds. READE offers global sourcing, custom toll chemical processing, and custom toll packaging from metallurgical grade to pharmaceutical and food grade.
Kemet International Limited, founded in Maidstone, Kent in 1938 is a manufacturer of lapping and polishing equipment. The company's product portfolio includes vacuum solvent cleaning machines, diamond pastes, ultrasonic cleaners, and polishing stones. Their products are used in industries such as Food and Beverage, Pharmaceutical and Biotechnology, Chemical and Petrochemical, Environmental Testing and healthcare. The company also provides services including national distribution, product selection, customized services, technical support and customer service.
Dongguan Kizi Precision Lapping Mechanical Manufacture Co. Ltd., established in 2010, is a Chinese manufacturer and supplier based in Dongguan, Guangdong, specializing in the provision of grinding, lapping and polishing machines. The company’s product range includes single-sided and double-sided lapping machines, and both high-speed and horizontal high-speed thinning machines. The company also offers related consumables, such as diamond grinding wheels and slurry, lapping and polishing discs, and polishing liquid and pads. These offerings are designed to process various materials, including ceramic, gallium nitride wafer, and silicon carbide substrate.
Ranking as of June 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Interstate Abrasive, Inc. |
21.7%
|
| 2 | Reade Advanced Materials |
19.6%
|
| 3 | Dongguan Jinyan Precision Grinding machinery Manufacturing Co., Ltd. |
17.4%
|
| 4 | Precision Surfacing Solutions |
13.0%
|
| 5 | Kemet International Ltd |
10.9%
|
| 6 | Advanced Abrasives Corporation |
8.7%
|
| 7 | Lapmaster International, LLC |
8.7%
|
Derivation Method
The ranking is calculated based on the click share within the diamond slurry page as of June 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
5 | 71.4% |
|
United Kingdom
|
1 | 14.3% |
|
China
|
1 | 14.3% |
173 products found - Page 2
173 products - Page 2
Toyo Polishing Industry Co., Ltd.
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■DiaMaxx Poly 9µm 2-in-1 diamond suspension.DiaMaxx is a carefully balanced mixture of diamond suspension and lubricant.Recommended for all materia...
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■DiaDoublo Mono 9µm 2-in-1 diamond suspension.DiaDoublo is a carefully balanced mixture of diamond suspension and lubricant.Recommended for softer ...
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■DiaUltra 3µm Unique 2-in-1 diamond suspension.DiaUltra is a superior,carefully balanced mixture of diamond suspension and lubricant.Recommended fo...
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■DiaDoublo Poly 9µm 2-in-1 diamond suspension.DiaDoublo is a carefully balanced mixture of diamond suspension and lubricant.Recommended for softer ...
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■DiaUltra 1µm Unique 2-in-1 diamond suspension.DiaUltra is a superior,carefully balanced mixture of diamond suspension and lubricant.Recommended fo...
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■DiaUltra 0.25µm Unique 2-in-1 diamond suspension.DiaUltra is a superior,carefully balanced mixture of diamond suspension and lubricant.Recommended...
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■DiaUltra Poly 15µm Unique 2-in-1 diamond suspension.DiaUltra Poly is a superior,carefully balanced mixture of diamond suspension and lubricant.Rec...
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■DiaUltra Poly 9µm Unique 2-in-1 diamond suspension.DiaUltra Poly is a superior,carefully balanced mixture of diamond suspension and lubricant.Reco...
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■DiaUltra Poly 6µm Unique 2-in-1 diamond suspension.DiaUltra Poly is a superior,carefully balanced mixture of diamond suspension and lubricant.Reco...
