Coated abrasives: Types and Uses

Published on: 2024-03-06 11:17
  1. What is coated abrasives?

    A coated abrasive is an abrasive tool made up of a thin film of abrasive grain attached to a substrate such as paper, fabric, etc. Coated abrasives develop in various shapes such as sheets, discs, rolls, specialties, or belts.

    Coated abrasives are sometimes referred to as "sandpaper," but they are not made with sand and are not backed by paper.

  2. Applications of coated abrasives

    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.

  3. Types of coated abrasives

    Below are some of the standard options that you will find for coated abrasives: Cartridge Rolls, Cross Pads, Deburring Wheels, Flap Discs, Flap Wheels, Sanding Belts, Surface Conditioning.

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    Film is a more recent development in the production of coated abrasives. Film media are made from a plastic sheet of uniform thickness. They fall somewhere between paper and cloth abrasives and are often considered the best of both worlds. Plastic is unlikely to tear and is light enough to be molded into precise shapes. Film backing is also waterproof and can be used for wet sanding applications. Film is well suited to automotive work that features many contours and requires fine polishing. Advantages Lasts longer than paper Tear resistant Flexible enough to match contours Waterproof Disadvantages More expensive than paper Usages Metal and automotive work Wet sanding Sanding complex contours and shapes...
  • 03-28 2024
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    Paper-backed abrasives (i.e., traditional sandpaper) are the most affordable abrasives and are available in a wide range of weights, from light and flexible to thick and tough. Weight grades A to C are best suited to hand sanding and the use of pressure-sensitive adhesives (PSA) or hook-and-loop discs, while grades D to G are strong enough for stroke or wide-belt sanding belts. Paper substrates are the lightest and most widely used. However, paper is also the weakest backing used for coated abrasives. Paper's lack of strength is offset by its affordability. Paper backings are recommended for light to medium sanding jobs on surfaces such as wood, textiles, and lacquers, as they provide a good finish while generating less friction and heat. Paper is ideal for flat sanding applications and generally provides the best finish for flat sanding jobs. However, paper supports tear ...
  • 03-26 2024
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    Cloth / fabric-backed abrasives are typically found on belts, although some sanding discs and sheets are available in cloth. They may be made from natural woven fibers (e.g., cotton) or synthetic fibers (nylon, polyester, rayon). Like paper, they come in different weights/thicknesses and varying degrees of flexibility and sturdiness. Your weight options are: JF- most flexible, making it a good choice when you’re sanding more detailed surfaces and profiles. J- made from a durable yet flexible cloth (e.g., denim) that can produce good results on both hand and machine sanding projects. X- stiff and sturdy cotton that is suitable for heavy machinery. YY- rugged polyester backing that’s strong enough to remove extra stock. Abrasives with a more lightweight and flexible cloth backing are recommended for finishing work while those made from heavier fabrics are designed fo...
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