You don't really find videos and pictures of the stuff because not many people know about it.. and those that do tend to act as if it's some secret information... This is the RPF.. it's all about sharing. I'm waiting on a urethane piece to arrive that I will be painting for a client and when I do I'll be posting a full tutorial using Imperiflex. Keep an eye out for that in the coming months and I'll run through the basics of it all.
As far as it in use, you've seen it, you just didn't know it. It gets used a lot on urethane or foam costumes, and is used heavily for stunt suits and flexible metallic or chrome pieces.
Just a few quick examples I had on my phone, though the easiest to point to is any Marvel movie. Iron Man suits, Thor's costumes and weapons, Captain America's shield, etc. If you ever chat with Sam, he can point out a thousand things done using his products.
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In this video around 9:30 when they start showing the flexible helmets and gloves, that was all painted with Imperiflex too.
Also.. at 5:58 what's sitting on the table? Alumaluster. :lol