Metal soaps are derived from long-chain fatty acids and a metal oxide compound. The fatty acids, in turn, are derived from a triglyceride (natural fats and vegetable oils, i.e. renewable feedstocks). Metal soaps – commonly known as metallic stearates – can be produced using various synthesis methods, e.g. precipitation and melting processes.

Baerlocher offers an extensive portfolio of metal soaps with diverse properties. The portfolio includes calcium stearate, zinc stearate, magnesium stearate, sodium stearate and aluminum stearate. These products can be employed as acid scavengers, stabilizers, lubricants and release agents, among other applications, and some are ideally suited for use as gelling or hydrophobic agents. Metal soaps can enhance production processes, and, in many cases, they enable manufacturers to develop products with smooth surfaces and low friction.

Applications in diverse industries

In the plastics industry, metal soaps are used in the manufacture of PVC products, and during the processing of numerous plastics, including polyamide, polyethylene, polypropylene, ABS and fiber-reinforced plastics (SMC, BMC).

Metal soaps are also used in many other fields, and for a wide range of purposes: