Coating duct tape.
I have a duct tape Batman mask that I want to smooth out a bit. It's going to be a full cowl going all the way down around the neck. I need to find something I can coat it with to smooth it out (something that will last a little while.) I also need to keep the button part rubbery so I can get it on and off (I'm planning on Velcro-ing the front and back.) Any suggestions would be appreciated!