Way back in the olden days, Monokote trim was not fuel proof. We had to seal the edges with clear "Dope". I finally got tired of that and started ironing on cut-outs of Super Monokote as trim. I even made a little tool to punch a bunch of pin holes in the bottom covering and eliminate air bubbles. Nothing real fancy. Starbursts and similar for contrast. I see there is a rotary tool available to punch the holes. I do have a questions through; Is Monokote trim sheet material now fuel proof?