Polishing Abrasives Polishing abrasives are materials that are used to effectively clean, smooth, and shape surfaces of all kinds. Polishing abrasives can be used on a variety of materials such as metal, wood, plastic, and porcelain. Abrasives come in many forms, including sandpaper, gritted block, or wheel. To be used effectively, the right product must be determined and appliedwith the right machine.
Polishing abrasives can remarkably improve surfaces that would otherwise be difficult to smooth by hand. The abrasive works by removing small particles of material in tiny increments from the surface being worked on. Over time, this gives a smooth and even finish. Abrasives are used in sanding, polishing, buffing, honing, and abrading.
Different abrasives are available with specific application purposes to achieve the best results. Aluminum oxide, for example, is the most popular abrasive for steel, metals, and other harder materials because it is extremely hard and strong. Silicon carbide is harder than aluminum oxide and is used on hard items such as brick, marble, and ceramics. Both are commonly used for cutting, grinding, polishing, shaping, and deburring.
Abrasives come in various grades and sizes. Generally, a low-grade abrasive is used for deburring and cleaning, while higher abrasive grades are used for fine polishing. For polishing, a wheel, block or stone provides the best results. Wheels are discs of abrasive material that rotate quickly to buff surfaces. Blocks are bricks of abrasive material used in masonry and metal polishing, while stones are milder abrasives that are most commonly used in woodworking and glass polishing.
Using the right abrasive and machine, as well as proper technique, can produce a beautiful finish on almost any surface. The key is to first determine the material to be polished and the desired finish, and then select the appropriate polishing abrasive. When in doubt, it is best to consult an expert who can help select the right product and correctly formulate the right abrasive mixture. With the right product, machine, and technique, amazing results can be achieved.
