If you’re a hobbyist, woodworker, or an auto detailer, then you already understand the importance of a random orbital sander. It’s one of the most common tools we often see in the toolbox of every auto body shop, woodshop, and garage. A random orbital sander is used for sanding, polishing, or buffing varieties of materials such as wood, metal, drywall, etc.
As the name suggests, the random orbital sander moves in a random pattern while orbiting in a circular motion. Yes, you can use a random orbital sander for car polishing with various polishing pads. But, make sure the sander you intend to use has variable speed settings.
There are various kinds of sanders available on the market, such as palm sander, orbital sander, random orbital sander, belt sander, etc. Each of them has different selling points, features, and advantages. The random orbital sander is the most effective and appropriate option for sanding or polishing an auto body.
What is the best speed for polishing a car?
If you want to polish a car with a power sander, you need to use the random orbital sander with a polishing pad that has a free speed or variable speed (up to 12,000 OPM). The variable speed settings will allow you to control the buffing and polishing actions better. The best speed for polishing a car is 1,500 – 4,000 OPM.
If you have excellent control over the sander, speed shouldn’t be a concern. As you’re using a random orbital sander, there is less chance of burning the paint. You can crank up the speed to a higher OPM/RPM if you need to eliminate aggressive swirl marks from the surface.
Which random orbital sander to buy?
There are three types of random orbital sander available on the market – electric, air, and cordless (battery-powered). You can buy either an electric or pneumatic (air) random orbital sander.
Pneumatic sanders are versatile and most preferred by professionals. But if you choose an electric sander, make sure it has variable speed settings. Cordless sanders are ineffective, not suitable for heavy usages. You can read our in-depth random orbit sander review here.
Professional auto detailers, woodworkers prefer air random orbital sanders as they offer precise control and excellent finish. But like any other air tools, it requires a decent air compressor to work. If you don’t have an air compressor, you may not want to get one of these tools. In that case, an electric random orbital sander with variable speed settings is the right choice for you.
Where to buy random orbital sander?
Random orbital sanders are available everywhere. Yes, everywhere! You can visit your local tool store, and you’ll definitely get a wide range of models there. If you want to buy online, check an e-commerce store such as Amazon. You can also buy directly from the manufacturers’ official websites. If you want to buy online, make sure you’re concerned about the shipping time and cost.
Is a random orbital sander the same as a dual action?
As we already know that, a random orbital sander performs dual actions – it moves in a random pattern, and at the same time, it orbits in a circular direction. The term ‘dual action’ represents the double movements of the sander. Therefore, a random orbital sander is the same as a dual action (DA) sander. Whether you call it a dual action or a random orbital sander, it’s the same tool.
Do random orbital sanders leave swirl marks?
As the variable-speed random orbital sanders offer excellent control, there is less risk that the tool leaves swirl marks on the surface. Depending on the expertise you have, the speed you’re using, and the pressure you’re putting for polishing, you may or may not notice swirl marks. Follow the expert instructions while polishing a car, or other surfaces so that you can achieve an excellent finish without generating any swirl mark.
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