Coated Abrasives

FAPRE Industrial Co., Limited. : Your Professional Coated Abrasives Manufacturer

FAPRE Industrial Co., Limited. is a high-tech enterprise committed in R&D, production, and sales of abrasives products. We have 6 branch factories today, 400 employees, total area of 120,000 square meters and more than 30 new products developments per year.

Excellent Product Quality
FAPRE has advanced equipment and a professional technical development and management team for high quality assurance. Our factory environment, management system and product quality all meet the abrasives manufacturing factory system qualification standards.

Rich Products
Our products include Resin Bonded Abrasives, such as Grinding Wheels For Metal, Grinding Wheels For Stainless Steel (INOX), Flexible Grinding Wheels, Ceramic Cut Off Wheels, Zirconia Cutting Wheels, Cut Off Wheels For Metal, Cut Off Wheels For PipeLine, Cut Off Wheels For Stone; Coated Abrasives, such as Aluminum Oxide Flap Discs, Quick Change Flap Discs, Ceramic Flap Discs, Zirconia Flap Discs, Aluminum Oxide Fiber Discs, Zirconia Fiber Discs, Emery Cloth Roll; and Brown Corundum And White Corundum etc.

One-Stop Service
There is no intermediate link when ordering products from our company. We provide one-stop service from design, processing, sample trial production to mass production.

Leading Service
We have many years of industry experience, a complete production management, quality supervision, and sales service operation system. Whether you want to purchase Resin Bonded Abrasives or Coated Abrasives, just email your requirements and we can customize the product for you.

Zirconia Flap Discs
Zirconia flap disk is a type of abrasive disk used in metal fabrication shops for removing welds and blending on hard metals, including carbon steel, stainless steel, and titanium. It features the...
read more
Emery Cloth Roll
Emery cloth is a type of woven fabric that has a grayish-black abrasive combination of corundum and magnetite coated on one side. During manual labor, it is used to smooth metal surfaces. Emery...
read more
Aluminum Oxide Fiber Discs
Aluminum oxide fiber discs offer a very hard and tough grain. They are a universal grain for grinding ferrous metals, iron, steel and sheet metals. They are manufactured using premium aluminum...
read more
Aluminum Oxide Flap Discs
Suitable for surface grinding and grinding at any angle. Advantages: high tensile strength, strong elasticity and self-sharpening, high efficiency and low energy consumption.
read more
Quick Change Flap Discs
Type R twist on and off our disc holders with a simple half turn.
Max Speed: 80M/S
Discs are available in Zirconia, 40# to 120#, for use on a range of materials including...
read more
Ceramic Flap Discs
Ceramic flap discs are the best choice for grinding stainless steel, titanium, Inconel, and others, Very high efficiency without hurting the polishing surface in lower noise.
read more
Zirconia Flap Discs
For grinding tasks such as weld seam dressing on planar surface, suitable for duty deburing and beveling work on stainless and high temperature steels.
read more
Aluminum Oxide Fiber Discs
Max Speed: 80M/S
Raw Abrasives: Aluminum Oxide
Application: Metal, Steel, Stainless Steel, INOX, Non-ferrous metals, Plastics, Aluminum and wood
read more
Zirconia Fiber Discs
Zirconia alumina grain (Z) is the preferred abrasive material on alloyed and unalloyed steels. zirconium fiber discs are perfectly suited for edge breaking work, cutting of difficult-to-machine...
read more
Emery Cloth Roll
Wear-resistant aluminum oxide abrasives and premium cloth back make this durable sand paper roll. Featuring less-clogging and anti-static. This cloth-backed sandpaper roll can be used in both wet...
read more

What are Coated Abrasives

Coated abrasives are tools used for grinding, polishing, and finishing surfaces. They are made of three parts – the backing material, the abrasive grains, and the bond. The backing materials can be paper, cloth, or fiberglass. The abrasive grains can be synthetic or natural particles, such as silicon carbide, aluminum oxide, and diamond. The bond, usually resin-based bonds, holds the grains in place. The tools come in various shapes, sizes, and grits, depending on the size of the abrasive grain and the thickness of the coating. The type of backing material, abrasive particles, and bond determine the performance level of coated abrasives.

Applications of Coated Abrasives

Coated abrasives play a crucial role in various industries and sectors where precise and controlled material removal, surface preparation, and finishing are required. Some key industries that extensively utilize coated abrasives include:

Woodworking
Coated abrasives are essential in the woodworking industry for tasks such as sanding, shaping, and finishing wood surfaces. They help in removing imperfections, achieving smooth finishes, and preparing wood for coatings or paints.

Metal Fabrication and Finishing
In metal fabrication and finishing, coated abrasives are widely used for grinding, deburring, and surface preparation of metal components. They aid in material removal, refining surfaces, and achieving desired levels of smoothness and surface roughness.

Automotive
The automotive industry relies on coated abrasives for applications like surface preparation, paint and primer sanding, and refinishing of vehicle bodies. They are crucial in achieving smooth finishes and ensuring high-quality surface preparation for paint adhesion.

Construction and Renovation
Coated abrasives are employed in the construction and renovation industry for tasks such as surface preparation, paint and coating removal, and finishing of materials like drywall and concrete. They enable efficient surface preparation, smoothing, and refinishing, ensuring high-quality results.

Surface Preparation
Coated abrasives are used for surface preparation, such as removing old paint, rust, or corrosion from metal surfaces. They provide an even and properly prepared surface for subsequent coatings, ensuring optimal adhesion and durability.

Finishing and Polishing
Coated abrasives are employed for achieving desired surface finishes and smoothness. They are used for sanding, leveling, and polishing surfaces to achieve specific surface textures and prepare materials for further finishing processes.

Material Removal and Shaping
Coated abrasives aid in material removal and shaping tasks, whether it is leveling uneven surfaces, shaping contours, or removing excess material. They provide controlled and precise material removal, allowing for accurate shaping and preparation.

Types of Coated Abrasives

There are various types of coated abrasives available for your product finishing and polishing. It includes a large variety of rolls, discs, flap wheels, and belts. The option that you make should always be based on your needs. Below are some of the standard options that you will find for coated abrasives:

Cartridge Rolls
Cartridge rolls are abrasive coated rolls that are suitable for sanding and finishing spaces that are difficult to access. The cartridge rolls are used on inside surfaces and inside corners where other abrasives can not hit high-speed grinders. Cartridge rolls have an aluminum oxide-coated material that can provide a versatile method of hand sanding, especially in metalwork.

Cross Pads
Cross pads are used for small channel polishing, end deburring, and workpiece finishing. The Cross Pads provide greater flexibility and make it easier for users to see through the contact region. These cross pads are perfect for fast grinding on channels, corners, or spotting on flat surfaces.

Deburring Wheels
Deburring wheels are used to wash, blend, deburring, finish, and polish metals and glass. For light to heavy precision mixing, deburring, and washing, these deburring wheels are ideal. Deburring wheels provide uniform finishing to components and quickly and easily deburr the workpiece than hand finishing.

Flap Discs
With a product that can grind and finish in one single action, flap discs offer precise angle grinding flexibility. Flap Disc is ideal for most ferrous & non-ferrous materials for sanding and finishing of welds, deburring, rust reduction, and snagging.

Flap Wheels
For most applications, from grinding to polishing, Flap Wheels are used. These flap wheels are usually used on ferrous alloy, high tensile materials, and a workpiece to finish complex shapes and tight contours. The versatility of the wheel helps the wheels to navigate places that are hard to reach. On grinders, drills, impact wrenches, or handheld rotary tools, flap wheels connect.

Sanding Belts
Sanding Belts are used for deburring, grinding, blending, finishing, and polishing. These belts are back with cloth, paper, or film. They are long, narrow strips of coated abrasive material that are used with a belt sander.

Surface Conditioning
Surface Conditioning Discs come in an all-inclusive range of grades and sizes and are an ideal first-step for washing, mixing, deburring, and finishing.

Different Abrasive Grains of Coated Abrasives

Coated abrasives are manufactured using abrasive grains; the most common are aluminum oxide, zirconium, ceramic, silicon carbide and garnet. The crude grains are crushed and separated into sizes, called grit sizes, using calibrated screens. Grits range from 12 (very coarse) to 1200 (very fine). Once the grains are separated into sizes, they are attached to a backing material using various bond techniques. Below are descriptions of the most common abrasive grains:

Ceramic
A high performance, man-made abrasive material. Very uniform, high density grain structure is extremely durable and self sharpening for longer life and cooler cut. Excels on tough to grind materials.

Aluminum Oxide
A tough, blocky shaped, man-made grain used for high speed grinding and finishing of metals, wood, and other high tensile strength materials without excessive fracturing or shedding. Wherever the ability to resist fracturing is the main consideration, aluminum oxide will outperform all other coated abrasive grains.

Zirconium

A very fine, dense, man-made crystalline grain which can be used for aggressive stock removal. Zirconium is a very dense material with a unique self-sharpening characteristic which gives it long life on heavy stock removal operations.

Silicon Carbide

A very hard, very sharp, man-made abrasive suited for non-ferrous materials and non-metallic materials such as concrete, marble and glass. A very friable grain, silicon carbide cuts faster under light pressure than any other grain used in coated abrasives.

Garnet

Garnet is made of natural aluminum oxide which is a relatively sharp, but very weak bonding structure. Very inconsistent when compared to synthetics. It is used primarily in woodworking as garnet dulls too quickly to be used in metalworking.

Different Types of Substrates Used in Coated Abrasives

The substrate is the main factor influencing the abrasive flexibility, which also serves as the carrier for the glue and abrasive. Paper, fabric, steel paper, composite substrates, non-woven fabric, polyester films, and other materials can be used as substrate materials for coated abrasives. These substrates must undergo specific processing to improve their mechanical and physical qualities and ensure they satisfy the specifications required for adhesive bonding and grinding operations.

Paper

For coated abrasives, highly technical papers are used as substrates. The letters reflecting weight and versatility define them: "A and "B" weights are lightweight and extremely flexible. "C,” "D,” "E,” "F" weights with more strength and less versatility are medium to heavyweight.

Cloth

Cloth backings are more reliable than paper backings. Cotton, polyester, and polyester-cotton combinations are significant types of cloth backings. Weight and versatility determine cloth backings. Cloth backing is ideal for applications of heavy-duty grinding and deburring. It provides excellent stability on edge.

Fiber

A rigid vulcanized material made from rag stock is fiber backing. For abrasive fiber discs, this backing is commonly used. The mixture’s backing is laminated paper and fabric and is very solid and resistant to shock. For a wide variety of grits and mounting methods, combination backings are usually used.

Other Backing Materials

There is also a range of different substrates coated for particular uses, such as nylon fiber or screens. Another substrate that can be used for drying, polishing, or mixing is non-woven nylon impregnated with abrasive grains.

Factors to Consider When Storing Coated Abrasives

Properly storing coated abrasives is essential to ensure their longevity and performance. You can start by keeping the tools away from dust, grit, and moisture. You can also store them in a cool and dry place to ensure they don't break down due to heat. Here are the major factors you should consider when storing abrasives, and how each factor affects them:

01/

Temperature
Exposure to extreme temperatures can cause the bond between the abrasive grains and backing material to weaken. As such, it is crucial to store coated abrasives in a temperature-regulated environment. You can use temperature-resistant containers to store the abrasives and prevent atmospheric temperature increases from affecting them. You can also place the tools in a cool place or install air conditioners in the storage area.

02/

Humidity
High humidity can cause the abrasives to absorb moisture, which can weaken the bond between the abrasive grains and backing material. As such, it is essential to store coated abrasives in an area with low humidity. Ensure you invest in storage containers that are humidity resistant. You can also use dehumidifiers to keep the storage conditions dry.

03/

Light
Not all types of light can damage coated abrasives, but it is important to keep them away from direct sunlight. The ultraviolet rays in the sun's rays can cause the grains to break down and reduce the performance of the tools. To navigate this, you can store your tools in a dark place or use light-resistant containers. You can also install light filters in the storage area to reduce the amount of UV rays reaching your tools.

04/

Dust and Grit
Dust and grit can cause the abrasives to clog, reducing the performance of the tools. To avoid this, you can use containers with tight lids or install filter systems in the storage area. You can also clean the tools thoroughly before and after use with an air gun or a sanding belt and disc-cleaning stick.

Frequently Asked Questions

Q: What are Coated Abrasives?

A: Coated abrasives are tools used for grinding, polishing, and finishing surfaces. They are made of three parts – the backing material, the abrasive grains, and the bond. The backing materials can be paper, cloth, or fiberglass. The abrasive grains can be synthetic or natural particles, such as silicon carbide, aluminum oxide, and diamond. The bond, usually resin-based bonds, holds the grains in place. The tools come in various shapes, sizes, and grits, depending on the size of the abrasive grain and the thickness of the coating. The type of backing material, abrasive particles, and bond determine the performance level of coated abrasives.

Q: How Coated Abrasives work?

A: Abrasives come in various grit sizes. The grit size determines the job the abrasive is best suited to perform. For example, larger grit sizes (24 to 60) work best on stock removal. Grits ranging from 80 to 220 get used on jobs like blending, graining, and surface preparation. Ultra-fine grits, ranging from 280 through 3000, are used on smooth surfaces or as a pre-polish smoothing agent.

Q: How Coated Abrasives are made?

A: A coated abrasive backing can be any material that is flexible and will take adhesive. That includes paper, vulcanized rubber, film, cotton, or polyester cloth. Using the backing as the base, abrasive is to the base. A base coat of adhesive, usually resin, is applied to the backing. Once that has set (but not dried,) an abrasive product, or grain, is applied to the base coat electrostatically. The electrostatic method is used to ensure a wide and even spread of abrasive across the backing and that the grain (abrasive) is facing the proper direction. Once the adhesive has dried, the abrasives get affixed to the backing, the resin coat gets applied over the abrasives. Dried resin locks the abrasives in place and provides some protection against wear and tear.

Q: What are applications of coated abrasive?

A: In today’s markets such as furniture, lumber, cabinet, boat, automobile, welding, foundry, jewelry, and do-it-yourself markets, The coated abrasives are produced in "jumbo" rolls and then cut into various shapes such as belts, discs, rolls, and sheets for surface treatment and polishing applications. Sanding rolls and sanding belts, typically for non-precision operation, are commonly coated abrasives for physical applications. These two styles are known as symbolic coated abrasives by the general public. Other coated abrasives include sanding sheets, sanding disc, flap discs, flap wheels, cross pads, deburring wheels, and many more.

Q: What are advantages of Coated Abrasives?

A: Coated abrasives offer several advantages over other types of abrasives. Firstly, they are versatile and can be used for a wide range of applications, including sanding, grinding, and polishing. Secondly, they are generally more affordable than other types of abrasives. Additionally, coated abrasives are easy to use, and their flexible design allows for better access to tight spaces.

Q: What are limitations of Coated Abrasives?

A: One of the main limitations of coated abrasives is that they can wear out quickly. The abrasive grains can become dislodged from the backing material, which can lead to inconsistent finishes. Also, the flexibility of coated abrasives can make it challenging to achieve a consistent finish, especially on harder materials.

Q: What are coated abrasives used for?

A: Coated abrasives contain abrasive grains held together in a matrix of glass, resin, rubber, or other binders. They are used to remove surface materials such as metal, ceramics, glass, plastics, and paint. Coated abrasives are used in both grinding wheels and abrasive stones or sticks.

Q: How are coated abrasives different from bonded abrasives?

A: Bonded abrasives consist of abrasive grains that are fixed within a matrix, which is often made of resin, rubber, or vitrified materials. On the other hand, coated abrasives feature grains that are attached to a backing material such as paper, cloth, or fiber using an adhesive.

Q: Can you use both bonded and coated abrasives for the same applications?

A: While there may be some overlap, bonded and coated abrasives are generally suited for different tasks. Bonded abrasives are typically used for heavy-duty grinding and cutting, while coated abrasives are more suitable for finishing and creating smooth surfaces.

Q: What factors should I consider when selecting coated abrasives for my project?

A: You should consider the material you're working with, the desired finish, the efficiency of the abrasive, its durability, the specific application, and environmental considerations. Cost-benefit analysis and expert recommendations can also guide your selection.

Q: How does the manufacturing process affect the performance of abrasives?

A: The manufacturing process can significantly impact the quality and performance of abrasives. Innovations in the production of coated abrasives can enhance their flexibility and longevity, while advancements in bonded abrasives can improve their strength and cutting efficiency.

Q: Are there any environmental concerns associated with coated abrasives?

A: Yes, the production and disposal of coated abrasives can have environmental impacts. Sustainability considerations include the materials used, energy consumption, emissions during manufacturing, and the ability to recycle or safely dispose of the coated abrasive after use.

Q: How do you determine the lifespan and maintenance needs of coated abrasives?

A: The lifespan and maintenance needs of coated abrasives depend on their wear resistance, the materials they're used on, and the intensity of use. Regular assessments of performance and condition can help determine when they need to be replaced or maintained.

Q: How are coated abrasives manufactured?

A: Coated abrasives are instruments used for polishing and grinding created by gluing abrasives to flexible materials such as paper or cloth. These come in various shapes and sizes, including rolls, sheets, belts, discs, and products with unique shapes. Substrates such as cloth, paper, or non-woven fabric can be used to make these.

Q: What types of backing materials are used in coated abrasives?

Q: What are the different forms of coated abrasives?

A: A coated abrasive may be a product that consists of a skinny layer of abrasive grain attached to a substrate like paper, cloth, etc. Coated abrasives are available through forms like Sheets, Discs, rolls, Specialties, or Belts.

Q: What are the grit sizes available in coated abrasives?

A: Coated abrasives come in a variety of different grits – starting as low as P8 and going to P1200 and up. Lower number grits are coarser grains and will do more stock removal, whereas higher grit numbers are finer grains and will have a much smaller cut rate.

Q: What are the key properties of coated abrasives that affect performance?

A: The performance of abrasives is critically measured by their cutting efficiency and the quality of finish they produce. Bonded abrasives are known for their precision and ability to create a smooth surface on harder materials. Coated abrasives, on the other hand, offer flexibility and are better suited for contoured or irregular surfaces.

Q: How long do coated abrasives typically last?

A: Coated abrasive products may contain organic material that breaks down over time. For this reason, it’s recommended that coated abrasive products be used within 2-3 years from the date of production. Of course, coated abrasive products could survive over 3 years in the right conditions, but you should exercise caution in using older abrasives.

Q: Are there safety precautions to consider when using coated abrasives?

A: Use only with adequate ventilation. Avoid breathing dust. Wash thoroughly after handling and use, especially before eating, drinking or smoking. Consider potential exposure to components of the base materials or coatings being sanded or ground.

We're professional coated abrasives manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale coated abrasives made in China here from our factory.

abrasive benefit, abrasive advantage, abrasive storage