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"Flashpoint"
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The lowest temperature at which the vapor of a combustible liquid can be made to ignite momentarily in air. |
How this relates to candles: The flashpoint refers to the temperature a fragrance oil would have to be in order to catch fire when coming into contact with a spark or an open flame. For example, if a fragrance oil has a flashpoint of 170, the oil would have to reach a minimum temperature of 170 degrees before it could catch fire when touching a flame. This does not mean that you cannot allow your candle wax to reach a higher temperature than the oil's flashpoint, it only pertains to actually coming into contact with an open flame or spark. It is perfectly safe to allow your wax to heat up to whatever pouring temperature you need even if you are using a fragrance oil with a lower flashpoint.
The flashpoint is especially important to know when making Gel candles as the Gel manufacturer, Penreco, recommends using oils with at least a flashpoint of 170. This is because oils with too low of a flashpoint could become a problem if the fragrance oil wasn't blended thouroughly with the gel and seperation occurred. That unblended oil could then come into contact with the flame, which could cause the flame to spread across the entire top of the candle. This is why we have listed the flashpoints of each fragrance on our website for our Gel candlemaking customers.
Copyright
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This article was written by Doneen St.John of Bitter Creek Candle
Supply, Inc.
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