Choose the right grain size for the sandpaper

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Home improvement is indispensable without sandpaper. Sandpaper of different grain sizes is used for many jobs.

Grinding safety.
Grinding safety.

What you need:

  • Sandpaper

Which grit should you use for which work on the sandpaper? Surely you have already faced this question when you dealt with building- and have employed handicraft instructions. The grain size is given in mesh. The larger the grain size, the finer the sandpaper.

What grain sizes are there and what for?

  • Coarse sandpaper is available in grain sizes between 6 and 30. You can use it for the rough removal of layers of paint and glue. Planks can be pre-sanded so easily.
  • Medium grain sizes are 36 to 80 and are used for pre-sanding raw, untreated wooden surfaces. Door frames, window- and door frames can also be treated with this grain.
  • With the fine grain size of 100 to 180 you can sand raw wooden surfaces very finely. If you want to paint something, you can pre-sand with this grit.
  • It is best to treat watered, lacquered or primed surfaces with the very fine grain size of 220 to 1000. A very fine grain is also used for bodywork.
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Important information about working with sandpaper

  1. Always start with a small grain size and gradually increase the grain size.
  2. At the ribbons with machines you should wear a dust mask.
  3. In between, remove the sanding dust from the paper, for example by knocking it out.
  4. If the grit is worn off, replace the paper.
  5. After sanding, you should also remove the sanding dust from the sanded surface in order to identify uneven or unsanded areas.
  6. Deep grinding marks cannot be carved out with a fine grain.
  7. With machine sanders, you should work in circular or figure-of-eight movements in order to avoid sanding marks as much as possible.
  8. Do not apply too much pressure as this can damage the machine and the material being sanded.

With these simple tips, nothing should stand in the way of successful sanding work. A consultation at the hardware store or specialist timber trade can certainly give you special advice on the work to be done.

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