White Aluminum Oxide 5 Micron

This very fine grade of aluminum oxide powder is used by amateur telescope makers to further smooth the surface of their mirror before polishing begins.

All of our abrasive grains and powders come in sealed jars. This keeps them safe from contamination during shipping and later when you are using them. We recommend that you use only one abrasive at a time to lower the risk of scratching your mirror, however, we have labeled both the jar and lid to make sure each pair is kept together.