KOYO "Green-Rough" K-1 polishing/buffing compound is used professionally by blacksmiths in Japan to give their blade surfaces a preliminary polish.
Apply this compound on a leather strop (can be purchased here), buff until a light lustre appears.
This 500g compound wax bar lasts for years.
Note: Due to long-distance transportation and the characteristics of the material, the outer packaging and product appearance may be a little imperfect, but it does not affect its function.
KOYO "Green Rouge" K-1 Buffing / Polishing Compound
Material: Chromium Oxide
Koyo-Sha was established at Ogu, Arakawa-ku, Tokyo in 1926. They are a major manufacturer of abrasive products like buffing wheels, belts and polishing compounds in the industry. Koyo is trusted by many Japanese balcksmith.