PSA PAD vs Hook & Loop Discs
April 17, 2021
Sanding discs are a part of a sander that does all the diligence. There are a ton of various discs for various jobs, and going to know the precise type that you need for the work you've got to try to do is significant for anybody employing a sander at work or reception.
Choosing the proper disc for the work is essential, as a failure to try to do so may result in a poor quality finish or damage to what you're trying to sand.
What is a PSA Pad?
PSA (short for pressure-sensitive adhesive) sanding discs have a sticky back and are smooth when used on large pieces that are likely to wear out the sandpaper. These sorts of discs are suitable for prolonged usage, with many workshops opting to use them until the abrasive is spent. PSA discs are best fitted to use on wood, fibreglass, or metal, counting on the coarseness of the disc selected.
It is usually sold in rolls or boxes of individual discs. PSA discs are very fashionable among woodworkers and auto body professionals that typically work on flat surfaces.
What is Hook & Loop Discs?
Hook and loop Sanding discs are made from cloth or paper with a backing material not dissimilar to Velcro. There is a system of hooks and loops wont to affix the sanding disc to the sander. This makes it extremely easy to vary the disc without sacrificing the standard of disc used. If the sander isn't made to be used with hook and loop sanding discs, you'll purchase a converter pad that can enable them to suit your sander.
The most common shape of a hook and loop sandpaper is a disc. Hook and loop sanding discs are extremely versatile within the sense that you simply can purchase them during a sort of different grades, from coarse to superfine. This suggests that they are suitable for a spread of labour on a spread of surfaces, from wood to metal and almost everything in between.
PSA Pad vs Hook & Loop
- PSA or "pressure-sensitive adhesive" is that sticky sort of sandpaper. The sandpaper has an adhesive coating, a bit like a sticker that adheres to the pad. You can peel the label off the sandpaper, stick it onto the pad using it. This sort of sander pad tends to be less costly than hook and loop pads. It does have one major drawback, however. It's tough to modify between sandpaper discs without making the disc useless. If you're taking off the disc, and even a touch little bit of dirt or sawdust gets on the adhesive coating, it'll not stick with the pad well. If your application doesn't require you to vary grits often, this is often an excellent format.
- Pressure-sensitive adhesive discs offer fast, convenient mounting of sanding discs, rolls, or sheets. Available during a sort of backings, these discs make mounting on a disc sander, orbital sander, rotary sander, and other equipment quick and straightforward. Choose between many grits and abrasive coatings like alumina, carbide, diamond, and more.
- Hook and loop is the common non-trademark name for Velcro. One side is roofed with hooks, and therefore the other side is roofed with loops. Once you put them together, the hooks fasten around the loops, and that they stay together easily. The sweetness of this technique is that it's simple, durable, and reusable. You'll put the two sides together repeatedly without sacrificing performance.
- Hook and loop is the more common sort of pad. Because it's so simple and sturdy, it's an excellent thanks to attaching your sandpaper to your sander pad. Once you are using a hook and loop during a shop, you'll change sandpaper grits easily. Normally, you'd start your project with heavy grit sandpaper (like 40 or 80 grit) to try to do the roughest work first. Once you are able to move to a lighter grit (like 120 or 180), you'll easily peel off the heavy sandpaper disc and place it on the new one. Once you put the heavy grit disc aside, you don't need to worry about getting a little touch bit of sawdust or other dirt thereon, because which will not affect how well it works.
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