Definition of "monocoat"

Identification of some organic pigments used in red and brown nonmetallic and metallic monocoats – quinacridones.

2001, Brian Caddy, Forensic Examination of Glass and Paint, page 272

Until the early 1980s almost all top coats were monocoats, a single coating composition applied in several coats. Monocoats have been largely supplanted by base coat–clear coat systems.

2007, Zeno W. Wicks, Jr., Frank N. Jones, Socrates Peter Pappas, Organic Coatings: Science and Technology, page 598