In the metal processing industry, PEG (PEG-2000, PEG-3000) has replaced some materials and has been popularized and applied. Their water solubility makes them show very important application value in the manufacture of hollow castings.

PEG can be used as a good lubricating agent in metal processing. Their low volatility allows PEG to be used as a flux stripping agent for low temperature solder, and high molecular weight PEG is a good binder for flux.

Polyethylene glycol is used in surface treatment processes such as copper plating, zinc plating, tin plating, tinned copper, lead-tin plating, lead-cadmium plating, chemical polishing, aluminum oxidation, corrosion, corrosion prevention, and degreasing. application.