White Aluminium Oxide Fepa Abrasives

What is White Aluminum Oxide?

Aluminum Oxide Properties and Composition

White Aluminum Oxide, an artificial compound synthesized through the fusion of alumina in electric arc furnaces, possesses a variety of notable features that differentiate it from other abrasives. Composed predominantly of Al2O3, it boasts a hardness of 9 on the Mohs scale, coming second only to diamond in terms of natural hardness. This ensures its ability to withstand high pressure and resist wear, making it suitable for heavy-duty industrial applications. Furthermore, it has a high melting point of approximately 2050 degrees Celsius and is chemically inert, thereby exhibiting excellent resistance to heat and most corrosive environments. Its crystalline structure, coupled with its high friability, enables effective fragmenting into sharp-edged particles upon impact, promoting more efficient cutting and less material removal.

Applications of White Aluminum Oxide Abrasive

White Aluminum Oxide finds extensive usage across various industries due to its unique properties. Here are some of its primary applications:

1. Blasting Treatments: Because of its high hardness and fine grain size, White Aluminum Oxide is widely used in blast cleaning of parts and surfaces, deburring, and preparation of surfaces for painting or plating.
2. Bonded Abrasives: It’s an ideal material for grinding wheels, cutting discs, and other forms of bonded abrasives due to its hardness, friability, and ability to fracture into sharp edges.
3. Coated Abrasives: With its high hardness, it is often used in the manufacture of sandpaper, discs, and belts for wood, metal, and glass sanding.
4. Polishing and Lapping: It finds use in the polishing of glass, quartz, and ceramic due to its high purity and lack of impurities that can scratch and damage these materials.
5. Advanced Ceramics: In the ceramics industry, it is used in the production of high-grade refractory materials, electrical insulators, and resistant coatings.
6. Medical and Dental: White Aluminum Oxide is used in dental and medical applications for its biocompatibility and hardness. This includes orthopedic implants and dental prosthetics.
7. Electronics: As an electrical insulator and a heat conductor, it is used in electronics as substrates and spacers for high-power semiconductors.

The versatility of White Aluminum Oxide is a testament to its unique physical and chemical properties, and new applications continue to be discovered as technology advances.

Comparing White Aluminum Oxide with Other Abrasives

There are various types of abrasives on the market, each with their unique properties and specific applications. Let’s compare White Aluminum Oxide with some of the most common alternatives:

1. Silicon Carbide: Although Silicon Carbide and White Aluminum Oxide share similar hardness levels, Silicon Carbide has sharper edges and tends to cause a deeper cut into the material. However, it breaks down faster than White Aluminum Oxide.
2. Brown Aluminum Oxide: Brown Aluminum Oxide is a more durable option than White Aluminum Oxide but has lower purity. This makes it less suitable for applications such as polishing and lapping, where righteousness is critical.
3. Garnet: Garnet is softer than White Aluminum Oxide and is ideal for more delicate materials or when a smooth surface finish is required. It’s less effective for heavy-duty applications where high hardness is needed.
4. Glass Beads: Glass Beads are often used for blasting treatments and can provide a satin finish, unlike the sharp, clean cut produced by White Aluminum Oxide. They’re also reusable but less complicated and durable.
5. Steel Shot and Grit: These are very durable and do not break down quickly, making them ideal for heavy-duty applications. However, they’re less complicated than White Aluminum Oxide and can’t produce the fine finishes that aluminum oxide can.

These comparisons reveal that while other abrasives have their unique strengths, White Aluminum Oxide remains a versatile and high-performing choice across a range of applications.

Grades and Grit Sizes of White Aluminum Oxide

White Aluminum Oxide is available in a wide variety of grades and grit sizes. The rates vary from macro grits, typically used for blasting, to micro spirits, used for fine polishing and precision applications. The coarser grits, such as 10, 16, or 24, are used for aggressive removal of material and to smooth rough surfaces. On the other hand, the finer grits, such as 180, 220, or 240, are used to achieve a highly polished or smooth finish. Micro grits are even finer and range from 320 to 1000, typically used in high-precision applications. These diverse grades and grit sizes make White Aluminum Oxide a versatile abrasive, capable of satisfying a broad spectrum of needs depending on the specific application.

Benefits of Using White Aluminum Oxide for Polishing

White Aluminum Oxide offers several significant benefits for polishing applications:

1. Superior Hardness: Its high hardness level ensures effective and efficient removal of surface imperfections, yielding a smooth, polished finish.
2. High Purity: It is free from iron, making it a superior choice for applications where ferrous contamination is a concern.
3. Versatility: With a broad range of available grit sizes, it can achieve varying degrees of polish, from coarse to mirror-like finish.
4. Fast Cutting Rate: It cuts faster than many other abrasives, resulting in shorter polishing times.
5. Durable: Despite its fast cutting rate, it’s durable and long-lasting, reducing the frequency of abrasive change-outs.
6. Economical: Given its durability and reusability, it offers a cost-effective solution for polishing needs.

How to Use White Aluminum Oxide for Surface Preparation?

Surface Preparation Techniques with White Aluminum Oxide

White Aluminum Oxide is typically used in two main surface preparation techniques: blasting and lapping.

Blasting involves projecting the White Aluminum Oxide onto a surface under high pressure. Depending on the grit size used, this can either aggressively remove surface material or provide a fine polish. For coarse removal, a larger grit size is recommended, while for a finer polish, a smaller grit size should be used.

Lapping is a process that involves rubbing White Aluminum Oxide with a slight amount of oil or water against the surface in a controlled circular motion. This technique is beneficial for achieving a highly polished, smooth finish. The choice of grit size, again, depends on the desired finish. For a coarser polish, use a larger grit size; for a mirror-like finish, use a smaller grit size.

It’s worth noting that both blasting and lapping require proper personal protective equipment (PPE), including dust masks and safety goggles, to ensure safe operation. Additionally, the work area should be well-ventilated to minimize the risk of dust inhalation.

Choosing the Right Grit Size for Surface Prep

Choosing the correct grit size for surface preparation is crucial to achieve the desired results. The grit size of White Aluminum Oxide determines how aggressively it will remove surface material or polish the surface. Larger grit sizes, such as 24 or 36, are typically used for aggressive material removal. These sizes are helpful for removing rust, paint, or other surface contaminants.

For moderate material removal or surface smoothing, medium grit sizes, such as 60 or 80, are recommended. These sizes can be used to prepare surfaces for paint or coating application.

On the other hand, smaller grit sizes, like 120 or 150, are often used to create a refined, polished finish. These sizes are ideal for finishing operations after the primary surface preparation is done, enhancing the aesthetic appeal of the material.

Remember, choosing the right grit size is as important as the process itself. A grit size that’s too large may remove more material than desired, whereas a grit size that’s too small may not provide the desired finishing effect. Always ensure that you match the grit size to the specific needs of your surface preparation task.

Compatibility and Safety Precautions for White Aluminum Oxide Abrasive

White Aluminum Oxide is widely compatible with various materials, including ferrous and non-ferrous metals, ceramics, glass, and plastic. However, its use of softer materials should be done with caution to avoid excessive material removal. Always perform a small-scale test prior to completing the application to ascertain its suitability for the intended material.

From a safety perspective, PPE is essential when using this abrasive. In addition to dust masks and safety goggles mentioned earlier, wearing durable gloves and a long-sleeved shirt can prevent skin contact. Furthermore, avoid operating in enclosed spaces to reduce the risk of inhalation and never direct the abrasive towards people or animals. Finally, remember to clean the work area thoroughly after each use to remove residual dust.

By understanding these compatibility and safety precautions, users can benefit from the efficiency and versatility of White Aluminum Oxide while ensuring a safe working environment.

Surface Finish and Polishing Techniques

When it comes to achieving a high-quality surface finish with White Aluminum Oxide, the technique employed can significantly impact the outcome. One standard method is the ‘step-down’ process, where the surface is first subjected to a coarse grit for initial refinement, followed by progressively finer grits for enhanced smoothness and shine. This technique allows for the removal of surface imperfections and gradual polishing to a desired finish.

Another technique involves continual movement of the abrasive across the surface; this avoids concentrating on one area for too long, preventing uneven wear or accidental gouging. It’s essential to maintain a steady, even pressure throughout the process for consistent results.

Finally, the use of a lubricant or polish can sometimes be beneficial, especially for delicate polishing tasks. It reduces friction and cools the surface, preventing heat damage and aiding the smooth movement of the abrasive. Always ensure the polishing product used is compatible with the material of your workpiece and the abrasive.

These techniques, when applied correctly, enable users to achieve a smooth, mirror-like finish using White Aluminum Oxide. Remember, the key to an excellent surface finish is patience and consistent technique.

Best Practices for Polishing using White Aluminum Oxide

1. Select the Appropriate Grit Size: Always start with the right grit size. Coarse grits (12-24 grit) are ideal for fast cutting and aggressive removal of material. For more delicate tasks requiring a smooth finish, select a finer grit size (120-220 grit).
2. Maintain Consistent Pressure: Apply even pressure while polishing to avoid creating an uneven surface or damaging the workpiece.
3. Continuous Movement: Keep the abrasive in constant motion to prevent excessive wear or accidental gouging in a specific area.
4. Use Lubricant or Polish: Utilize a suitable lubricant or polish to reduce friction, cool the surface, and aid in the smooth movement of the abrasive.
5. Ensure Compatibility: Always make sure the polishing product used is compatible with the material of the workpiece and the abrasive.
6. Safety First: Wear appropriate personal protective equipment (PPE), including gloves, safety glasses, and dust masks when working with White Aluminum Oxide.
7. Clean the Workpiece: Before moving to a finer grit, ensure the workpiece is thoroughly cleaned to avoid contaminating the finer grit with coarse particles.

Remember, the key to excellent results is a combination of the right equipment, proper technique, and patience.

Where Can White Aluminum Oxide Abrasive Be Applied?

Industrial and Manufacturing Applications

White Aluminum Oxide Abrasive is utilized across a broad spectrum of industrial and manufacturing applications due to its hardness, fine grit, and high purity. Some of its primary uses include:

1. Metal Fabrication and Welding: It is extensively used for cleaning, etching, or conditioning metal surfaces before welding or painting. It is also employed in the removal of weld spatter and rust.
2. Aerospace Industry: The aerospace industry uses white aluminum oxide for precision blasting and surface preparation processes due to its high friability and low heat retention.
3. Automotive Industry: It is used for cleaning and preparing surfaces for painting, as well as engine and parts cleaning.
4. Electronics Industry: White aluminum oxide is used in the electronics industry for its anti-static properties. It is applied in the etching of printed circuit boards and the manufacture of semiconductors.
5. Medical Field: It is used to manufacture high-quality medical prostheses and dental supplies due to its biocompatibility.
6. Ceramics Industry: White aluminum oxide is a critical ingredient in the production of technical ceramics and refractories due to its high melting point and resistance to chemical reactions.
7. Construction Industry: It finds applications in the production of high-quality, abrasion-resistant coatings and flooring, enhancing the lifespan of construction materials.

Automotive and Aerospace Industry Uses

In the automotive industry, White Aluminum Oxide Abrasive is primarily employed in surface preparation tasks. Prior to painting, surfaces must be thoroughly cleaned and roughened to ensure optimal paint adhesion and white aluminum oxide provides the necessary abrasion. Furthermore, it is crucial in engine and parts cleaning, effectively removing dirt, oil, and other contaminants without inflicting damage to the underlying material.

In the aerospace industry, the use of White Aluminum Oxide Abrasive is focused on precision blasting and surface preparation. Its high friability – the ability to break down and create new, sharp cutting edges during the blasting process – makes it an ideal choice for delicate aerospace components. It’s also favored for its low heat retention, reducing the risk of warping or damaging heat-sensitive parts during the blasting process.

Construction and Metal Fabrication Applications

In construction and metal fabrication, White Aluminum Oxide Abrasive is a valuable tool with a variety of applications:

1. Surface Preparation: Similar to automotive applications, it’s used to prepare surfaces for painting or welding by removing rust, scale, or other contaminants, enhancing adhesion, and reducing defects.
2. Abrasive Blasting: Used in sandblasting applications to remove paint and rust and to prepare surfaces for painting, coating, or galvanizing.
3. Grinding and Polishing: It’s used in grinding wheels for precision grinding of metals and other materials due to its hardness and ability to resist wear.
4. Cutting Tools: White aluminum oxide is incorporated into the manufacture of cutting tools, enhancing their durability and cutting efficiency.
5. Abrasives: The material serves as an essential ingredient in the production of bonded abrasives, coated abrasives, and abrasive grains, contributing to their toughness and wear resistance.
6. Flooring: In the construction industry, it’s used in anti-slip flooring applications due to its hardness and high-friction properties.

Artistic and Decorative Surface Polishing

In the realm of artistic and decorative surface polishing, white aluminum oxide is an essential tool, offering a unique blend of efficiency and precision. Its hardness and fine grain size make it ideal for creating smooth, polished surfaces on a diverse range of artistic and decorative items.

1. Sculpture Polishing: Artists commonly utilize white aluminum oxide for the fine polishing of sculptural elements, providing a clean, shining finish that enhances the sculpture’s aesthetic appeal.
2. Glass Etching: The abrasive qualities of white aluminum oxide make it a popular choice in glass etching, allowing artisans to create intricate designs with precision and control.
3. Jewelry Polishing: In the jewelry industry, white aluminum oxide is used to polish precious metals and gemstones, contributing to the luster and value of the finished product.
4. Ceramic Smoothing: Owing to its hardness, white aluminum oxide is effectively used for smoothing and polishing ceramic pieces, adding to their visual appeal and ensuring a smooth, tactile surface.
5. Restoration Work: In restoration projects, it is often used to carefully remove grime or previous finishes from antique items without causing harm to the underlying material, thus preserving the integrity of the piece.

Through these applications, white aluminum oxide not only plays a crucial role in crafting and polishing artistic and decorative surfaces, but it also helps to maintain and enhance the beauty of our cultural heritage.

Medical and Dental Surface Treatment

In the realms of medical and dental practice, white aluminum oxide has a distinct significance in surface treatment procedures. Physicians and dental professionals often use it for micro-abrasion in a variety of applications.

1. Orthodontics: In orthodontics, white aluminum oxide is used for micro-etching tooth surfaces before the application of brackets and other attachments. This process ensures a stronger bond between the tooth and the adhesive, improving the stability and effectiveness of orthodontic appliances.
2. Prosthodontics: In prosthodontics, the material is utilized to prepare the surfaces of crowns, bridges, and other prostheses before cementation, ensuring a stronger, more durable bond with the natural tooth structure.
3. Implantology: In dental implantology, white aluminum oxide helps to create a roughened surface on titanium implants, increasing their biocompatibility and promoting osseointegration, or the direct structural and functional connection between the living bone and the surface of a load-carrying implant.
4. Medical Device Manufacturing: In the broader medical field, white aluminum oxide is used in the manufacturing of medical devices, where its abrasive qualities help to create finely machined, smooth surfaces that are necessary for patient safety and device efficacy.

Through these applications, white aluminum oxide contributes significantly to advancements in medical and dental surface treatments, leading to improved patient outcomes and procedural success rates.

What Makes White Aluminum Oxide a Superior Abrasive?

White Aluminum Oxide’s High Hardness and Toughness

White Aluminum Oxide is characterized by its high hardness, which is reflected in its rating of 9 on the Mohs scale. This hardness, coupled with its fracture toughness, makes it a superior abrasive over other materials. Its hardness ensures that it can withstand high pressure and the rigors of heavy-duty operations without losing its abrasive properties. Meanwhile, its toughness denotes the material’s ability to resist fracturing, extending its longevity. This unique combination of hardness and toughness enables white aluminum oxide to deliver consistent, high-quality results in abrasion tasks, making it a preferred abrasive material in many demanding applications.

Chemical and Thermal Stability of White Aluminum Oxide

White Aluminum Oxide exhibits excellent chemical stability and is resistant to reactions with acids and bases, even under high-temperature conditions. This fundamental property allows it to maintain its structure and abrasive characteristics in diverse industrial environments, ensuring it doesn’t degrade or lose effectiveness over time. In addition, it boasts impressive thermal stability, standing up to extreme temperature fluctuations and exhibiting a high melting point of 2072 degrees Celsius. This makes it suitable for high-heat applications, such as grinding, cutting, and polishing operations, where other abrasives might fail or degrade. These features underscore white aluminum oxide’s adaptability and endurance, further solidifying its reputation as a superior abrasive material.

Effectiveness in Polishing and Grinding Carbide Materials

White aluminum oxide’s effectiveness extends to polishing and grinding carbide materials, especially tungsten carbide, one of the most complex materials used in industry. Its superior hardness and fracture toughness, coupled with its impressive thermal stability, enable white aluminum oxide to grind, cut, and polish carbide materials without losing its abrasive properties or causing unwanted damage. The abrasive grains of white aluminum oxide can penetrate the hard surface of carbide materials, achieving a high-quality finish. Furthermore, due to its chemical stability, it maintains its abrasive properties even when used with different coolants and lubricants typically employed in grinding operations. This means the abrasive performance of white aluminum oxide remains consistent despite challenging conditions, reaffirming its place as a preferred material for polishing and grinding carbide components.

Particle Size and Shape in White Aluminum Oxide Abrasive

White aluminum oxide’s superiority as an abrasive material is also influenced by its particle size and shape. Being available in a variety of grit sizes, from coarse to micro-fine, this abrasive can meet diverse grinding and polishing requirements. The angular shape of white aluminum oxide particles allows for aggressive cutting and a high material removal rate. These particles also maintain their sharp, cutting edges throughout their use, resulting in a consistently high-quality finish. Furthermore, the irregular shape of the particles contributes to creating a uniform scratch pattern, which is essential for achieving a smooth and polished surface. Thus, the unique combination of particle size and shape in white aluminum oxide enhances its effectiveness as an abrasive material, making it a preferred choice for various industrial applications.

White Aluminum Oxide vs. Brown Fused Aluminum Oxide

In the comparison between white aluminum oxide and brown fused aluminum oxide, several key differences mark their suitability for particular applications:

1. Hardness: White aluminum oxide is more complex than brown fused aluminum oxide, making it more suitable for more complex materials, such as carbide materials.
2. Toughness: Brown fused aluminum oxide has higher toughness compared to white aluminum oxide, which makes it more suitable for applications where the abrasive is subjected to increased stress.
3. Durability: White aluminum oxide tends to last longer due to its higher hardness and ability to maintain its abrasive properties under challenging conditions.
4. Price: Generally, white aluminum oxide is pricier than brown fused aluminum oxide due to the additional processing required to achieve its color and purity.
5. Purity: White aluminum oxide is made from pure alumina, resulting in a product with higher purity compared to brown fused aluminum oxide.
6. Applications: Due to its toughness and lower price, brown fused aluminum oxide is commonly used for rough grinding, whereas white aluminum oxide is ideal for precision grinding and polishing.

By understanding these differences, industries can make informed choices about the most suitable abrasive for their specific needs.

Understanding the Technical Data and Specifications of White Aluminum Oxide

FEPAGrades and Specifications for White Aluminum Oxide

The Federation of European Producers of Abrasives (FEPA) has established standardized grades and specifications for white aluminum oxide abrasives to ensure consistency and quality. FEPA grades for white aluminum oxide are designated by the letter ‘F,’ followed by a number. The number represents the sieve mesh size that the majority of the grains pass through. For instance, F60 indicates that most grains pass through a sieve with 60 holes per inch.

1. Grain Size: Ranges from F12 (coarse) to F220 (magnificent) for bonded abrasives and F230 to F1200 for coated abrasives.
2. Hardness: Generally, the hardness of white aluminum oxide as per FEPA standards ranges between 9-9.5 on the Mohs scale, indicating its high hardness.
3. Toughness: While the toughness can vary depending on the specific grade, white aluminum oxide is generally low in toughness compared to other abrasives.
4. Specific Gravity: Typically, the particular gravity of white aluminum oxide is around 3.95 g/cm³.
5. Melting Point: The melting point of white aluminum oxide is approximately 2050°C.
6. Color: As the name suggests, white aluminum oxide is white or slightly off-white.

These standards set by the FEPA guide manufacturers in maintaining the integrity of their products and users in selecting the correct abrasive for their applications.

White Aluminum Oxide Powder Composition and Purity

White Aluminum Oxide powder is typically composed of over 99% pure aluminum oxide. This high level of purity is achieved through a process called the Bayer process, which refines bauxite, an aluminum ore, into alumina (aluminum oxide). The remaining content is usually tiny amounts of other compounds such as silicon dioxide, iron oxide, and titanium dioxide. The purity of the white aluminum oxide powder plays a significant role in its effectiveness as an abrasive. A higher purity level often translates into better performance, making it a superior choice for various applications, including surface finishing and micro-blasting. It is also noteworthy that the powder is chemically inert, ensuring it doesn’t react with materials being worked upon. This property further enhances its suitability for a wide range of abrasive applications.

Particle Size Distribution and Grit Size Details

In the world of abrasives, particle size distribution, and grit size are fundamental characteristics that impact the material’s performance. The grit size of white aluminum oxide powder refers to the number of particles per inch, and it’s typically measured using a screen analysis. The larger the grit number, the smaller the particle size. For instance, a 60-grit size denotes larger particles, while a 220-grit size signifies smaller particles.

On the other hand, particle size distribution refers to the range and frequency of particle sizes present in the white aluminum oxide powder. A narrower distribution indicates more uniform particle sizes, leading to a consistent finish. Conversely, a broader distribution means a diverse range of particle sizes, which may be beneficial for specific applications requiring a more aggressive abrasive action.

Understanding these properties is crucial for selecting the correct white aluminum oxide powder for specific applications to ensure optimum performance and desired results.

Electrical Properties and Melting Point of White Aluminum Oxide

White Aluminum Oxide displays excellent electrical insulating properties, making it a suitable choice for use in electronic components and insulators. Its dielectric strength, which refers to the maximum electric field a material can withstand without breaking down, is exceptionally high. This high dielectric strength, coupled with its thermal stability, makes it a preferred material in the manufacturing of electrical insulation products.

Another noteworthy property of White Aluminum Oxide is its high melting point, which surpasses 2000 degrees Celsius. This high melting point is attributed to the solid ionic bonds within its crystal structure, which require a substantial amount of energy to break. Consequently, this feature makes White Aluminum Oxide an ideal abrasive for high-temperature applications such as refractory bricks and blast furnaces. Understanding these properties enables the selection of White Aluminum Oxide for applications that demand high electrical insulation and thermal stability.

Environmental and Safety Certifications for White Aluminum Oxide

White Aluminum Oxide, like other industrial materials, is subject to a range of environmental and safety certifications to ensure its safe and responsible use. These certifications ensure adherence to international standards concerning environmental impact, health and safety risks, and manufacturing quality. For instance, the ISO 14001 certification ensures that the manufacturing process meets global standards for environmental management. Similarly, the OHSAS 18001 certification guarantees compliance with occupational health and safety regulations, while the ISO 9001 certification affirms the quality of the manufacturing process. Therefore, when sourcing White Aluminum Oxide, it’s crucial to seek suppliers who can provide these certifications as proof of their commitment to environmental sustainability, worker safety, and product quality.

References

1. White Aluminum Oxide – Abrasives & Media – SurfacePrep: This source provides information about white aluminum oxide abrasives, highlighting their minimal iron content, which makes them a safe choice for applications requiring minimal contamination.
2. Aluminum Oxide White Fused Sandblasting Abrasive, Coarser Grades 8 through 240 – Sandblasting Abrasives: This article discusses the uses of coarser grades of white aluminum oxide for sandblasting. It provides valuable details on the grit sizes and their corresponding profiles.
3. Aluminum Oxide White Fused Sandblasting Abrasive, Fine Grades 280 through 1200 – Sandblasting Abrasives: This source provides detailed information about the fine grades of white aluminum oxide used in sandblasting and polishing. It mentions that these abrasives are obtained from a reduction fusion of high-quality bauxites.
4. White Aluminum Oxide Grit | Kramer Industries Inc.: Kramer Industries provides insights into why white aluminum oxide is widely used in blast finishing and surface preparation due to its cost, longevity, and hardness.
5. White Aluminum Oxide Abrasive Media | Blast Booths: This source highlights the versatility of white aluminum oxide as an abrasive media for anti-slip or non-slip flooring, polishing, and refractory material.
6. White Aluminum Oxide Polishing Abrasive – AGSCO: AGSCO offers information about their product, highlighting its suitability for abrasive blasting and as an anti-slip flooring aggregate.
7. White Aluminum Oxide Powder Abrasive Media for Sale – Tenroads Glass: This manufacturer’s website provides details about white aluminum oxide powder and its applications in grinding high-carbon copper and high-speed steel.
8. White Fused Aluminum Oxide – GNP Graystar: This source provides technical information about white fused aluminum oxide and mentions that it is a high-purity abrasive specialty material.
9. JESCO Aluminum Oxide – Amazon: This Amazon product page provides customer reviews and detailed product descriptions for JESCO’s white aluminum oxide abrasive, which can be used for etching and cleaning for surface prep.
10. White Aluminum Oxide Silica Sand – Xtreme Polishing Systems: This source gives information about a medium-density abrasive made from white aluminum oxide and silica sand designed for general industrial use.