How Do You Make candle Wax Harder?

Are your candles burning down too fast, leaving pools of wax in their wake? When you mould with waxes, with low melting points of 60°C (140°F) or lower, you end up with too soft, badly burning, poor quality candles. How do you harden candle wax? By adding wax hardening agents, such as stearin, or clear or luster crystals, to the waxes.

These paraffin wax additives raise the melting point of wax, and improve candles significantly, in various ways: they harden the waxes, making your candles burn longer; they maintain their shapes, (even in hot weather); have a better appearance, (with enhanced colour); slide out of their moulds more easily; and burn with less drips and trailing streams of smoke.

You can use luster crystals instead of stearin in any candle. This compound hardens and raises the melting point of wax, improves gloss and sheen and brightens colours. Clear crystals raise the melting point and harden wax. They brighten colours and eliminate bubbles on the wax surface. More translucent than other additives, these make a sought-after additive for hurricane candles. Stearin (stearic acid) increases opacity.