I had a buyer return one last month I don't remember the framing details and that is gone now. They came back and ordered an acrylic print. It took then a few weeks to cancel, so I guess they didn't like it, once they saw it.
@ Marcelo, I do top mounted prints over a rigid gatorboard substrate with float-mount spacers attached to the back side so they can be displayed frameless. The prints are also encapsulated with a UV protective laminate that does not reduce the effectiveness of any metallic or pearl fine art papers. I provide this format from my own website though, and self fulfill client sales directly. I've had clients drop them right into a frame just as easy, no reason to window mat and no need to place glass in front of the print because it's already encapsulated.
I don't like to place glass in front of a paper print, unless, it is mounted under acrylic glass. I loathe the glare of the glass sheets and the fact it's so heavy and brittle. The stand-in plexi...well I won't even comment. The top-mounted prints over rigid gatorboard are popular with my clients, they seem to fill the niche' for some buyers wanting an hd acrylic museum mount but are unable to over reach.
You would really enjoy this display format. And thanks for the compliment on my work I still have visible here on my FAA page. The works on my personal site are more critically curated and most of them I don't upload here, but that's off-topic back to your questions :)
Here's the quick synopsis. An archival quality adhesive layer gets flawlessly mounted over the rigid board first before the fine art print is attached, and finally encapsulated. No heat or risk of damage. I'm not doing this myself from a home studio. I have a very select (small) group of professional print labs I work with that craft 3 of my favorite print formats I provide to clients shopping on my website. Regarding the top-mounted gatorboard format, the print lab I am using stands behind their quality and workmanship which allows me to provide a full 1-year guarantee to my customers.
**Its taken some time to locate a qualified print lab for this format. I've ordered samples from several companies that advertise they provide this print format, and unfortunately, most of them don't provide the quality I demand from them so I'm loyal... correction, make that not literally married to just the one**