While many, many candle fragrances can be used safely in gel candles, you have to be sure that they are gel candle "safe."
First, Gel-safe fragrances must be completely oil-soluble (non-polar) to be used with gel candles. "Polar" fragrances have some component that is not completely oil soluble. They can cause the gel to break down and/or form small pockets within the candle that can be quite flammable (lower flash point) when the flame hits them. This can cause dangerous flare ups in the candle.
If you don't know for sure (from your supplier) that the fragrance is non-polar, there is an easy test you can do to check:
- Thoroughly mix one part fragrance with three parts mineral oil. Let it sit for about 30 minutes. If it stays mixed (no separation) and is clear, your fragrance is probably compatible.
- To be extra sure, mix three parts fragrance with one part mineral oil and stir - again looking for lingering cloudiness or separation. If it passes both of these tests, you should be good to go...IF...
Secondly, the flashpoint of your fragrance should be over 170°. Since gel candles burn at a much higher temperature, fragrances with much lower flashpoints can cause the overall flashpoint of the blended gel and fragrance to be unsafe. Unfortunately, there is not a reliable measure for flashpoint other than consulting your supplier and making sure that the fragrance is indeed "gel safe."
More Gel Candle Making FAQs
- What is gel wax?
- Are there different kinds of gel wax?
- How do I melt gel wax?
- What are the benefits of gel wax?
- How is it different from traditional waxes?
- Can I use the same fragrances in gel wax?
- How do I get the gel out of the bucket?
- What type of wicks should I use?
- What kind of containers can I use?
- Can I make my own gel wax?
- How much fragrance can I use in gel wax?
- Can I embed anything in gel wax candles?
- What is "cold flow"?
- What kind of colorants can I use in gel candles?
- Are gel candles dangerous?
