I'm sure it would be sweet as for a cage as unless you leave it in the sun 24/7 the paint won't be affected too much by the sun. Even if it is affected it just slightly discolours, no loss of quality.
Not sure why por15 is the site address as they have many products, including spray equipment.
I have 1L of black in the garage ready for my next project, bloody good stuff!
Freshly painted starlet floor (still wet) it lost a bit of its shine when dry but still looked mint.

