Use it on Plexiglass!

Glassprimer™ coatings Nano-Technology is designed for bonding to glass but can also be used for painting on plexiglass and other materials such as various types of metals, plastics, stone, and more…

Bonding to other materials is excellent with the proper surface preparation. For all surfaces except for glass, you must first sand the surface with 220-300 grit sand paper before painting.