Crown Technology Inc. is a family-owned and operated specialty chemical manufacturer with unmatched expertise serving the Steel industry. We have been developing, manufacturing, and supplying the highest quality acid pickling inhibitors, rinse additives, and industrial cleaners since 1946. Crown is also the leading supplier of ferrous sulfate products; including food grade mono and heptahydrate in North America. Crown's commitment to exceptional product quality and the highest level of customer service has made us the industry leader in steel processing chemical technology. We are committed to building long-term customer relationships, providing on-going customer support and growing our businesses together. 2021 marks our diamond anniversary-75 Years!