Donald J. Keehan, Sr., the founder of Advanced Polymer Coatings (APC), passed away on December 28, 2022.

Keehan had been involved in starting and running several polymer-based technology companies since the 1960s. APC was one of his most successful companies.

APC, formerly Advanced Polymer Sciences, was incorporated in 1989 with headquarters in Avon, OH, to produce high-temperature polymers to meet the extremely demanding anticorrosion and surface protection requirements of the military and aerospace industries. Keehan was considered to be a pioneer in the use of proprietary patented polymers to create high-performance coatings, including the well-known MarineLINE® and ChemLINE®. According to APC, he held more than 14 patents.

Keehan was a son, brother, husband, father, grandfather, and great-grandfather, and he was a veteran of the United States Marine Corps.