I tried to do the same thing with my armor, which I ended up with the baskside kinda sticky, specially at the edges, leaving marks in my vest. I probably didn't mix the resin too good with the hardener or something.
I fixed the problem already. About the process, I strongly suggest to do that BEFORE you paint your armor, add velcro and/or assemble the gauntlets, the paint will cover any mistakes, and the gauntlets because it's just a hassle and difficult to do that while they're assembled. Just my 2 cents.
Robert