401 N. Gates Drive
Bloomington, IN 47404
(812) 339-3653

Circle-Prosco, Inc - Your Solutions People!

An image from CPIStarted in 1971, Circle-Prosco, Inc. is a full service specialty chemical company. We research, develop, manufacture, and support a broad range of products used in the metal finishing industry. We specifically design the vast majority of our products to be environmentally friendly, providing customers with less regulatory headaches, improved performance, and increased safety.

Our products include non-chromate conversion coatings for aluminum, chromate conversion coatings for aluminum, iron phosphates and non-phosphate coatings for steel, aqueous cleaners, lubricants and rust preventatives.

We differentiate ourselves from our competition by providing in-depth service and support. Sales people are backed by experienced technical service personnel and a fully equipped lab. When a potential customer has particularly difficult problems, we can (and often do) custom formulate products that are less expensive and more environmentally friendly.

Thanks to our products and strong technical staff, Circle-Prosco has grown significantly in the past few years, more than doubling our staff. We achieved and maintain QS-9000/ISO-9000 certification to guarantee quality products that perform under demanding conditions.