i have found that when i am doing a scene candle and do not want bubbles, i have to pour hot, in thin layers. i pour a layer, put it in a warm oven, turn off oven and let candle cool down. when i take it out of the oven, if there are bubbles on surface, i zap it with the heat gun. i repeat this until the candle is finished. it takes time, but it works for me. you can see my scene candles at www.picturtrail.com/candleheart48 hth, cheryl