The stearin is a natural material. The melting point is about 56°C. To increase the burning time of a candle, 1 part stearin should be mixed with 10 parts paraffin wax pellets.

Stearin powder
The stearin powder consists of vegetable fatty acids. The stearin powder is added to the paraffin wax pellets while casting the candle and the higher the stearin content in a candle, the better the combustion quality and the temperature stability. (Mix ratio: 1 part stearin for 10 parts paraffin).The melting point is about 60°C.