Sanding porcelain: That's how it works

Porcelain is an extremely hard material that can not be sanded with conventional abrasives. What this is and how and with what you can still grind porcelain, we explain below.

Hardness of porcelain

Porcelain is a very hard material that has a hardness of 8 (Mohs hardness scale). Thus, porcelain is harder to grind than iron and other metals and not with conventional grinders. Soft porcelain may be a little softer than hard porcelain because of its lower content of koal. Porcelain from China is usually soft porcelain, the porcelain produced in Germany is usually harder and belongs to the class of hard porcelains.

Even porcelain grind

When porcelain breaks down, the pieces are often very sharp-edged. If you want to decorate a beautiful picture frame from the fragments or create a pretty mosaic, it may be necessary to sand down the porcelain. You can do this either with a specialist, eg. visit the local pottery or buy a diamond sharpener or special sandpaper and go to work yourself. At you can e.g. buy a diamond sharpener for just under 25 €. This diamond sharpener is a kind of arrows that you can use to cut off all corners and edges. The diamond-coated arrows are very narrow, so sanding can take a while. With special sanding paper for porcelain, sanding may be faster and the paper is much cheaper.
This should be noted when sanding:

  • When buying the abrasives, make sure that the products are especially suitable for porcelain. Since porcelain is very hard, there are few means that can grind it.
  • When sanding the pieces, be sure to wear work gloves so you do not cut.

Polish porcelain

If you want to smoothly polish rough or dirty porcelain, you can do this with silica. Disturbing stickers or labels can be removed with a few drops of glass cleaner.

Clean porcelain

Porcelain is very resistant and can be quite a bit off. However, caution should be exercised when using chemicals to clean porcelain. Preferably wash it with a good soft soap or a normal detergent. For very heavy soiling, use turpentine or benzine. Special care should be taken when cleaning bisque porcelain. For details, click here.

Tips & Tricks

Here's how to properly clean and maintain a ceramic pan.

Video Board: How To Bull nose And re hone a Porcelain