How to Mix Cerium Oxide

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Cerium oxide is a popular solution for polishing glass. Unlike other polishing products, like diamond paste, cerium oxide is packaged as a powder. With a little bit of water, you can turn your cerium oxide into a slurry that can effectively smooth and polish your glass.

Part 1
Part 1 of 2:

Prepping the Glass and Making Slurry

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    Wipe down the glass with your preferred glass cleaner and a soft, clean cloth. Get rid of any dust, dirt, or grime that’s sticking to the glass, as these can create more scratches during the polishing process. [1]
    • As a precaution, double-check that the glass surface is completely clean before you start polishing it.
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    Set a small, 1 US pt (0.47 L) or 1 US qt (0.95 L) container on your work surface. Pour warm water into the basin until it’s filled halfway. [2]
    • The size of the container really depends on the size of your polishing pad and the size of the project that you’re polishing. If you’re working with a small section of glass, you can use a 1 US pt (0.47 L) container.
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    Grab a new polishing wheel, or remove it from your electric drill if it’s still attached. Soak the surface in the warm water, which will make it easier to apply the cerium oxide slurry to the glass. [3]
    • The pad only needs to be damp, but not dripping wet.
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    Pour several spoonfuls of cerium oxide powder into another empty plastic bin. Stir a smaller amount of lukewarm water into the bin to mix the powder until it has a watery, slightly creamy texture. [4]
    • You may want to make a large batch of slurry if you’re polishing something big, like a glass tabletop.
    • The slurry should have a paint-like consistency, which helps it adhere to the pad and glass.
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Part 2
Part 2 of 2:

Polishing with the Slurry

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    Check that the pad is securely attached to the electric drill so it doesn’t fall off when you start polishing your glass. For extra guidance, read the instructions with your polishing pad or drill. [5]
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    Hold the drill and dip the pad into the cerium oxide slurry. Don’t cake the pad with the mixture, but check that the surface is completely covered. [6]
    • You can always dip your pad into more cerium oxide later.
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    Use the cerium oxide sooner rather than later, so the mixture doesn’t dry out. Keep the container of cerium oxide slurry near your polishing project for easy access. [7]
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    Dip your pad into the paste again if the slurry doesn’t seem to be sticking the glass and polishing properly. [8] If the slurry starts drying on your glass, spritz over it with lukewarm water. [9]
    • The slurry can cause long-term damage to your glass if it dries completely.
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    Take a clean cloth and get rid of any leftover slurry on the glass. You’ll probably use multiple coats of cerium oxide slurry to polish your glass project, so you’ll need to wipe off the leftover mixture after each round of polishing. [10]
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      Tips

      • If you aren’t a fan of cerium oxide, you may want to use diamond paste to buff your project. You can also use a rubber silicone polisher, or use a diamond polishing pad. [11]
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      Warnings

      • You may want to make a larger batch of cerium oxide, as it can several coats to polish your glass. [12]
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      • If you spill any cerium oxide slurry or powder on your skin, wipe it off with soap and water. [13]
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      • Wear a safety mask when handling cerium oxide as an extra safety measure. [14]
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      Things You’ll Need

      • Cerium oxide
      • 2 small plastic bins
      • Water
      • Gloves
      • Spoon
      • Polishing pad
      • Electric drill

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      References

      1. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      2. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      3. ↑ https://www.eternaltools.com/blog/how-to-remove-scratches-from-glass
      4. ↑ https://www.eternaltools.com/blog/how-to-remove-scratches-from-glass
      5. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      6. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      7. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      8. ↑ https://www.eternaltools.com/blog/how-to-remove-scratches-from-glass
      9. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      1. ↑ https://m.youtube.com/watch?v=GybSUfQyam8&t=3m20s
      2. ↑ https://www.eternaltools.com/blog/how-to-remove-scratches-from-glass
      3. ↑ https://www.technologylk.com/ceriumoxide/howto.pdf
      4. ↑ https://www.espimetals.com/index.php/msds/489-cerium-oxide
      5. ↑ https://www.espimetals.com/index.php/msds/489-cerium-oxide

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