Printing vinyl & magnetics on Epson 7600 Ultrachrome printer

I own and manage a commercial printing company in central Georgia. We have distributed signage for about 10 years (banners, corplast, magnetic signs, etc.). I am considering doing at least some of this in house now and I am looking for advise/help as we grow. Mainly for very small orders of car magnets & corplast signs for walk in walk out sales...

I have an Epson 7600 Ultra Chrome (aqueous/pigment) 24" wide format printer which we use to generate CMYK color proofs for the presses. I know of some shops who print their full color magnets on adhesive backed vinyl and then apply it to the magnetic substrate.

So I want to print the (car/truck) magnets on the Epson 7600. What I want to know is about the Magnum Magnetics material, particularly the 24"x50' 30mil roll states on their website it is for solvent printers...will it not work with pigment/aqueous ink? I would much rather print directly on the magnet if it will work, or would I be better to print on the adhesive backed vinyl and apply that to the magnetic base?

Also I have a laminator to either laminate the finished magnets or just the adhesive vinyl...but is laminating really necessary?

And last but not least what about car magnets round corners vs. square corners? As long as I am using 30 mill does the corners really matter?

Anyway, hope I get some good response...

Thanks,
John