Below are several excellent resources about wax and wax related products that we have collected for your convenience:

National Candle Association
The National Candle Association (NCA) is the major trade association representing U.S. candle manufacturers and their suppliers. Founded in 1974, NCA acts as the collective voice for the candle industry in promoting the safe use and enjoyment of candles, pursuing product excellence through quality formulation, monitoring and responding to issues impacting the industry, and advancing the industry as a whole. The National Candle Association is widely recognized as the leading technical authority on candles and candle manufacturing. Its member companies account for more than 90 percent of all candles made in the United States.
http://www.candles.org