HumiSeal is from the United States and is a well-known three-proof paint brand under Chasecorp, a large-scale specialty chemical manufacturing group in the United States. It is a pioneer and innovator in the field of conformal coatings. HumiSeal specializes in researching, developing and manufacturing conformal coatings, thermal management, potting, packaging and specialty adhesive products, including acrylic resins, polyurethanes, UV curing, silicone, synthetic rubber, etc. Among them, UV40, 1A33, 1B73, 1B31 and other three-proof paint products enjoy a reputation in the industry.

Founded in 1946, Chasecorp is a global specialty chemical company and is a leading manufacturer of protective materials for high stability applications in various market areas. The group is headquartered in Westwood, Massachusetts, USA, and operates manufacturing plants in the United States, Europe and Asia.