Coherent Brand polish for Optic Cleaning, 250 ml bottle. (Aluminum Oxide)
Coherent # 6009804
We prefer to use this polish only on external bend mirrors. Some people do use polish on lenses, however the product can be too harsh on the lens coatings, be cautious.
Always be sure to clean all the polish off of the optic, otherwise the polish absorbs the laser beam and will cause the optic to burn.