Here's why:
* Paraffin wax is a petroleum-based wax that melts at a relatively low temperature. This makes it ideal for candles because it burns cleanly and consistently.
* It's a common coating: The wax is applied to the wick to help it burn evenly and prevent the wick from fraying or burning too quickly.
Note: While paraffin wax is the most common, some trick candles might use other waxes like soy wax or beeswax. However, paraffin is still the most widely used material.