I did some research and Rit dye changed there formula due to scarcity of certain ingredients, or that's what disc golf dyers are saying. 80% of the Rit dyes will no longer work on polycarbonate. I've ordered some samples of dyes from other companys and will post here when I find one that works to my satisfaction.
Theflightyellz's Quick Guide to Plastic Dyeing
I found one that works, or at least I can confirm the black does. Here's the link for eBay.
http://www.ebay.com/itm/Jacquard-iDye-PO...1e8460b591
Make sure you get the idye poly.
http://www.ebay.com/itm/Jacquard-iDye-PO...1e8460b591
Make sure you get the idye poly.