What are the different types of purging compounds available in the market?

There are two major classes of purging compounds in the market. One is referred to as mechanical or abrasive purging compounds – these are compounds where the cleaning process is based on the mechanical action of hard particles, e.g. glass. The other type of purging compounds are chemical purging compounds – with these the cleaning process relies on chemical additives that initiate some form of chemical reaction. Hybrid type purging compounds combine elements of both mechanical and chemical actions. Purging compounds can come in a ready-to-use format where the product can be used directly from the container or in a concentrate format which requires mixing before use.