Changsha Kona Fine Chemical Co., Ltd.

Micro Alumina Polish - What is it & What is it Used for?

Micro alumina polish, also known as alumina microabrasives or microfine alumina, is a type of polishing material that consists of fine particles of aluminum oxide (alumina). It is commonly used in various industries for polishing and finishing applications.


The micro-sized alumina particles in the polish have abrasive properties, which allow them to effectively remove surface imperfections, scratches, and dullness from a wide range of materials. Alumina is a durable and hard material, making it suitable for achieving high-quality polishing results.


Alumina Polishing Powder 0.3 Microns


Micro Alumina Polish Features

Micro alumina polish is available in different grades or particle sizes, ranging from extremely fine to coarser particles. The choice of grade depends on the specific application and desired level of polishing required. Finer grades are typically used for achieving a high-gloss, mirror-like finish, while coarser grades are used for more aggressive polishing and material removal. The micropolish alumina offers several features that make it a preferred choice for polishing applications.



  • Fine particle size: Micro alumina polish consists of fine particles of aluminum oxide (alumina). The small particle size allows for precise and controlled polishing, especially on intricate or delicate surfaces.


  • Abrasive properties: The alumina particles in the polish have abrasive properties, enabling them to effectively remove surface imperfections, scratches, and dullness from various materials.


  • High hardness: Alumina is a hard material, offering excellent abrasion resistance. This hardness allows the polish to effectively remove scratches and create a smooth surface.


  • Durable and long-lasting: The alumina powder for polishing is known for its durability, ensuring long-lasting performance during polishing processes. The high-quality alumina particles remain effective even after prolonged use.


  • Versatility: Micro alumina polish is suitable for use on a wide range of materials, including metals, ceramics, glass, plastics, and composites. It can be used for various polishing applications in different industries.


  • Consistent particle size distribution: Micro alumina polish is manufactured with precise control over the particle size distribution. This consistency ensures uniform polishing results and helps achieve a smooth and even surface finish.


  • Compatibility with different polishing methods: Micro alumina polish can be used with various polishing methods, including manual polishing with a cloth or pad, machine polishing, or as an ingredient in polishing compounds or suspensions.


  • Compatibility with different surfaces: Micro alumina polish is compatible with different surface types, including flat, curved, and irregular surfaces. It can be utilized for polishing large surfaces as well as small and intricate areas.


  • Optimal mixing and spreading: Micro alumina polish can be easily mixed with lubricants or extenders to enhance its spreading capabilities and ensure even distribution of the abrasive particles over the surface.


  • 10. Controlled material removal: The use of micro alumina polish allows for controlled material removal during the polishing process. This control helps prevent over-polishing or excessive material loss.



What is micro alumina polish used for?

Micro alumina polish is used for various polishing and finishing applications across different industries. Some common uses of micro alumina polish include:


1. Metal polishing: Micro alumina polish is widely used for polishing metal surfaces to remove scratches, oxidation, and other imperfections. It helps restore the shine and luster of metals such as stainless steel, aluminum, brass, copper, and silver.


2. Glass polishing: Micro alumina polish is effective in polishing glass surfaces, including windows, mirrors, lenses, and glassware. It helps eliminate scratches, water stains, and haze, resulting in a clear and polished finish.


3. Ceramic polishing: Micro alumina polish is used for polishing ceramic materials, such as tiles, pottery, and porcelain. It helps smoothen the surface, remove glaze imperfections, and achieve a glossy finish.


4. Composite material polishing: Micro alumina polish is suitable for polishing composite materials, including carbon fiber, fiberglass, and various polymer composites. It helps improve the surface appearance and remove imperfections.


5. Optics polishing: Micro alumina polish is commonly used in the optics industry for polishing lenses, mirrors, prisms, and other optical components. It ensures optical clarity, removes scratches, and enhances light transmission.


6. Jewelry polishing: Micro alumina polish is used in the jewelry industry to polish precious metals and gemstones. It helps restore the shine and brilliance of jewelry pieces while removing surface scratches and blemishes.


7. Automotive polishing: Micro alumina polish finds application in the automotive industry for polishing painted surfaces, clear coats, and headlights. It helps eliminate swirl marks, light scratches, and oxidation, resulting in a glossy and professional finish.


8. Electronic component polishing: Micro alumina polish is used for polishing electronic components, such as semiconductor wafers and printed circuit boards (PCBs). It helps improve surface smoothness, remove contaminants, and enhance electrical performance.


Micro alumina polish can be used in different polishing processes, including manual polishing with a cloth or pad, machine polishing, or as an ingredient in polishing compounds or suspensions. It is often used in conjunction with lubricants or extenders to help distribute the abrasive particles evenly and enhance the polishing efficiency.


What is the function of micro alumina?

Abrasives: Micro alumina is commonly used as an abrasive material in polishing and grinding applications. Its hardness and fine particle size make it ideal for achieving smooth finishes on metals, ceramics, and other materials.


Catalysts and Catalyst Supports: In the chemical industry, micro alumina is used as a catalyst or as a support for catalysts. Its high surface area and thermal stability make it suitable for facilitating various chemical reactions, including those in petrochemical refining and environmental applications.


Ceramics: Micro alumina is a key ingredient in the production of advanced ceramics. It is used to manufacture high-strength, wear-resistant ceramic components for applications in electronics, aerospace, and biomedical devices.


Refractories: Due to its high melting point and thermal stability, micro alumina is used in refractory materials that can withstand extreme temperatures. These materials are essential in furnaces, kilns, and other high-temperature industrial processes.


Electronics: In the electronics industry, micro alumina is used as an insulating material and as a substrate for electronic components. Its excellent electrical insulation properties and thermal conductivity make it valuable in the production of circuit boards and other electronic devices.


Filtration: Micro alumina is used in filtration systems, particularly for water and air purification. Its fine particle size and high surface area allow it to effectively capture contaminants and impurities.


Biomedical Applications: In the biomedical field, micro alumina is used in the production of prosthetics, dental implants, and other medical devices. Its biocompatibility and mechanical strength make it suitable for these applications.


Pigments and Fillers: Micro alumina is used as a pigment and filler in paints, coatings, and plastics. It enhances the durability, hardness, and appearance of these materials.


Optical Applications: Due to its transparency and refractive properties, micro alumina is used in optical applications, including lenses and other optical components.


As a professional polishing slurry manufacturer, we are dedicated to delivering exceptional products to meet your polishing needs. Trust KONA as your reliable source for high-quality micro alumina polish in wholesale quantities. Whether you are in the automotive, electronics, jewelry, or any other industry, our polish will exceed your expectations.