Dulux Metalshield

[Griffter]

Some guys are painting the metal bits of our work premises with this stuff. Anyone used it for chassis protection? Looks like it goes on well, and they've hardly been thorough in their preparation or application.
Before anyone says 'POR15', I'm not a fan of it, having had rust come through in under 4 months - and my chassis doesn't need doing anyway! Just wondered...