The final smoothing is done using a metal trowel.ĭust-free sanding therefore doesn’t require the use of sandpaper, like with manual sanding, nor require using power tools such as plaster sanders. Then, using a felt trowel and after re-wetting the surface, you need to rub it down. With wet sanding, after applying the plaster and leveling it out, you only have to wait for it to initially set. The process not only requires using special material, but is also more tricky than dry sanding. Dust-free plaster sandingĭust-free sanding, also called wet sanding, is very different. Sandpaper can also be coated with a special layer of zinc stearate, reducing the risk of clogging with dust and making it more durable. The most common choice is aluminum oxide, although you can also find sandpaper made of precious aluminium oxide, which grains are more brittle and also sharper, helping achieve better results and reducing the risk of scratches. The material the sandpaper is made of is also important. Remember that you can only start sanding once the plaster has completely dried off. In some cases poorly mixed plaster is even impossible to properly sand. You should also remember to apply very well-mixed plaster in the case of any curves, as the small lumps that may appear are very difficult to get rid of with both sandpaper and sanding mesh. However, using mesh requires precision, otherwise it can cause visible scratches and unevenness on the surface. In addition, the mesh can be turned over when it gets worn out, or blown clean when it get clogged with dust. This allows you to significantly shorten the sanding process compared to using sandpaper. A mesh made of silicon carbide is often used for sanding plaster, as it is hard and extremely durable. P180 paper should be used for final sanding.Īn alternative to sandpaper is abrasive mesh. Then, in order to effectively polish any remaining unevenness, and at the same time avoid making scratches that will ruin the final affect, you should gradually switch to a larger grit, e.g. Initial surface treatment should be done using P100 paper, which is the most delicate. Let’s start with the fact that sandpaper can have different grades of granulation, or grit. Which type of paper is best? Read below to find out! Regardless of whether you decide to sand the plaster manually or use a plaster sander, you will need to choose the right type of paper. This is important in order to suck up the dust. Therefore, when choosing sandpaper discs, make sure that the number and arrangement of the holes both on the circular disc and on the abrasive disc are identical. These discs are made of sandpaper or mesh, with special holes on the surface. Plaster sanders usually use abrasive discs attached to the circular disc with Velcro. Is pole sanding possible without a vacuum cleaner? Yes it is, because sanding sets very often include special dust bags connected to the outlet, which can be connected to a vacuum cleaner. Power tools used for sanding, as mentioned earlier, are equipped with a dust extraction system, which lets you connect an industrial vacuum cleaner and not worry about keeping the room clean while sanding. It’s long handle allows you to easily reach the ceiling and high spaces. Wall Sanding Machine – 750 W – with Dust BagĪ pole sander will come in very useful during finishing works.Wall Sanding Machine – 750 W – Combi with 2 Sanding Wheels 199.00 £.Electric Drywall Sander – 1.010 W – With Dust Bag 109.00 £ 79.00 £.It is important to remember this! Sanding plaster with an orbital sander Plaster that is not sanded down properly will not fulfill its main purpose. To avoid scratches and surface irregularities, sand downwards and in the same direction. Wet grinding, however, requires a little more skill and the use of special material.Īll of these methods will be discussed in more detail later on in this guide, but before we get into the details, it is important to know that with sanding you should always start from the ceiling. For this purpose, special power tools – plaster sanders – are used for sanding down the plaster. using sandpaper or abrasive mesh (a special plaster sanding block could also be a good solution) and machine sanding. In the first case, there is a further division into manual sanding, i.e. First of all, you can choose between dry and wet sanding. smooth and even, you need to sand it down. However, in order to obtain an ideal surface, i.e. These are among the reasons its use is widespread during renovation or finishing works, applied as a 2-mm layer between the cement and the paint. Another advantage is that it is not harmful to your health. Plaster is a very easy material for sanding.
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