Why Do Non-Drip Candles Drip?
At MRJ Trading we have sold literally 1000’s of candles to 100’s of satisfied customers. Occasionally people have commented that their candles have dripped even though they are bought and sold as non-drip candles. This information sheet tries to explain what may have happened.
In reality there is no guarantee that non-drip candles won't drip. When making candles several different types of wax are used, each with its' own characteristics. The wax used in most non-drip candles contains Styrene acid. This acid produces a harder wax which therefore has a higher melting point and is used on the outside edge of the candles.
The heat from the candle wick in the centre of the candle is not hot enough to melt the harder wax around the outside edge of the candle. Therefore the solid wax edge prevents the pool of liquid melted wax in the centre from dripping. The thicker the candle the less likely it is that the heat from the wick will be able to melt the edges of the candle.
All non-drip candles will drip if there is a draft or breeze. Heat normally rises but if a draft blows the hot air from the wick to one side the hard edge of the non-drip candle will begin to melt, thus allowing the liquid wax to drip.
It is also possible that the placing of the candle can affect its' non-drip ability. If the candle is placed where it could be unevenly heated it would become softer on one side and could drip - for example near other heat sources or in direct sunlight.
To try and prevent dripping check your room / venue for drafts and breezes. Simply light the candle and if the flame stays still you have no draft. If the flame moves you have a draft and this could cause your non-drip candle to drip. Obviously try not to place candles near other heat sources or in direct sunlight, such as on window sills.