At a soap conference, I won a case of IGI container wax and we only make tarts. Can I add something to the container wax to make a good tart? I need to order more candle wax, but my budget won't take it now and I would love to use the container wax if it would make a good tart. I emailed the company that donated the wax for door prize and asked if I needed to order something to blend with the wax, but I have gotten no response. Thank you for any suggestions.