Z302 became less obtainable when the manufacturer required expensive massive drums of the black specular paint as the minimum order. As they no longer accommodate customers with pint-sized needs, companies, such as the National Institute of Science and Technology (NIST), are searching for a replacement. PT401 has been used on previous projects with satisfactory results. In accordance to requirements from NIST, a process for painting with PT401 8-10mils thick will be developed, and adherence, durability and specular reflectance and diffuse properties in the infrared will be documented.
Cassidy, Sariah, "PT401 Paint Process Development and Infrared Reflectance Measurements" (2015). Physics Capstone Projects. Paper 25.