13206 is a multi-component corrosion inhibitor for treating closed systems. 13206 combines three proven corrosion inhibitor technologies to give long lasting corrosion protection with minimum maintenance attention. The basic inhibitor system incorporates a molybdate-borate blend that buffers pH to protect steel and forms a protective film over metal surfaces. This combination has long been the industry standard for treating closed systems. 13206 incorporates a molybdate-based corrosion inhibitor system for added protection on metal surfaces and a dispersant for suspended solids. Tolyltriazole is added to 13206 to assure corrosion protection on non-ferrous metals. The borate and molybdate are film-forming inhibitors that effectively protect metal surfaces against oxygen attack.