interesting note from two trusted voices, if you don't want to out the manufacturer publicly would one of you PM me with what you got so I can consider staying clear of them?
thus far the only metalic media I've liked at all is Moab Slick Rock, but that's not for wraps.
I have no problem identifying it.
Mine was IJ Technologies Black Diamond Metallic Glossy.
It could be something you like,you never know.
When I sprayed a semigloss varnish it pretty much ruined the sheen. At least to my taste.
In the products defense a gloss only coat may really be what is required.