Fatman, I looked into the mfg. website and there actually is a retail outlet 25 miles away! Do you know if the pigments can be mixed into clear nail polish?
According to the the description on the web site you should be able to mix them with anything. As far as how much to mix with nail polish you'd have to experiment with that one.
Thanks for the info - think I'm gonna try some of the pearl powders in NP as a combo thread sealer / head overcoat. Getting tempted to take on powder painting, but that added clutter to our house might destroy my marriage!