One way you could stop nylon exteriors from wicking heat away would be to coat them with liquid latex. The latex built up in a few coats would give a smoothskin appearance. Liquid latex is thin enough for airbrushing, so you can even have a custom colored suit or camoflage pattern. For colors, I would recommend sealing the nylon with white first, and then apply color starting with the lightest colors first.
It would best be done by two people, with the suit wearer in the suit and the other applying the latex. The wearer will have to be able to keep the suit smooth with no wrinkles till the latex dries and talcum powder or silicone spray can be applied. Once powder/silicone is applied the latex will stop trying to stick to itself.
WARNING!!! If you are alergic to latex do not try this! Keep latex away from hair as it loves to stick to it and is very hard to remove. Also mask off all zippers and velcro.
It would best be done by two people, with the suit wearer in the suit and the other applying the latex. The wearer will have to be able to keep the suit smooth with no wrinkles till the latex dries and talcum powder or silicone spray can be applied. Once powder/silicone is applied the latex will stop trying to stick to itself.
WARNING!!! If you are alergic to latex do not try this! Keep latex away from hair as it loves to stick to it and is very hard to remove. Also mask off all zippers and velcro.