Pumice powder is used for taking scratches and marks out of glass.
This is a specialist powder which is mixed with water to form a paste for scratch removal on glass. It is much coarser than cerium oxide and used as a first stage to take out marks and lines in glass or crystal. It is then commonly followed buy cerium oxide for a polished finish.
Used by watch makers for glass watch fronts and other decorative glass or crystal items.
Can be used for small or large areas with mops, calico, felt or chamois mops.
Care should be taken to keep the process wet to avoid heat build up which could damage the glass.
Pumice can be used for a number of jobs in the jewellery studio. Generally used for creating a clean greaseless surface ready for soldering. Best used after pickling wet with a brush. It needs to be cleaned off well with water to ensure no powder is left behind which could inhibit solder flowing. Similarly it is used in enameling to create a clean surface.
Pumice can be used to create a really nice matt finish. Best mixed with water and rubbed on the metal with a brush, it leaves a nice subtle matt finish.
Traditionally pumice can be mixed with vegetable oil and used with a felt wheel of varying shapes to begin the polishing process on silverware.