KOYO Sunlight Polishing Compound


KOYO Sunlight Polishing Compound


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✔︎ No import fees & duties - worldwide
✔︎ All taxes included
✔︎ Express worldwide shipping
✔︎ 30-day return policy

The water-based polishing/buffing paste is great for knife blade maintenance, including polishing, removing hairline scratches and dirt, and restoring luster, as well as for removing unwanted patinas.


Apply a small amount of paste to the desired surface. Use a soft, clean cloth and start polishing back and forth in straight lines, or gently rub off the patina.

Avoid circular motions. After polishing, wipe the surface with another clean, dry cloth and rinse it with lukewarm water and washing detergent. Store the paste indoors and avoid freezing temperatures and direct sunlight. Unlike other similar products, the paste has no scent of petroleum.

What not to do:

  • The paste is not intended to be used on other materials, such as metals.
  • Do not use the product on optical lenses, such as eyeglasses or camera lenses.
  • Do not ingest. After use, wash your hands thoroughly. Wear protective gloves if you have sensitive skin.


The KOYO (Koyo-sha) manufacturer was found in 1926 in the town of Awakawa, a part of Tokyo metropolis. Their water-based polishing/buffing pastes for kitchen knives are a favorite among blacksmiths around the globe. They are great for maintaining the mirror polishing of your knife, as well as for removing patina.

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