So I made this small test panel to learn about using Ceconite. The tapes and inspection hole were fairly saturated with Rand-o-Proof but after curing, it looks like air creeped in. I used super seam on the edges and rand-o-proof on the tapes and circular patch. Is there some secret to getting the air out? What did I do wrong? Rand-o-proof thinned 1 to 1 with 286 thinner. Ceconite was shrunk before at 250 degrees.