Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
Thanks to Paul Linn and Charlie Mullendore of Antietam Classic Cycle for providing the following information on the old Yahoo! Loopframe_Guzzi news group (which has now moved to Groups.io). In Paul's own words:
POR-15 makes a chassis coating similar to powder coating yet you can brush it on as it self levels. If you scratch or chip it you can easily touch it up again and you won't be able to tell.
+1. Applied with foam brushes, it self-levels especially well. Used to be calledChassis Blacknow renamedTop Coat.