Originally Posted by Gauge

I used less than one and I did a ton of coats on both. Still need to open them back up and finish the trimmings.

Also, I still recommend not using any tools but your heating source. Pull it off. If you have to use a flat object, use a long flat object, much longer than a screwdriver. Like a paint scraper, and be VERY gentle using it. When the black plastic heats up it is very formable. You can deform it quite easily.