As a beginner in this hobby, I was having problems with severe sink holes and wet spots during my container candle process. I tried different pouring temps, heating the jar, etc. I read countless articles online to figure out what I was doing wrong. Frustrations were mounting!
However, trial and error finally paid off. The problem was not the wax itself. The problem was simply the canning jar containers I was using. I found my canning jar containers varied in thickness and I assume this caused uneven cooling.
I poured two candles, one in a canning jar and another in a 'Status' jar. Both jars were preheated to approximately 125 degrees using a pour temp of 170 degrees. I let both jars cool in the oven.
The results were amazing. The canning jar showed a deep sink in the middle of the candle along with 90% wet spots. The Status jar had a slight depression in the middle and ZERO wet spots.
When you are having problems with your candles, look at all your variables and start narrowing it down. In the end, I followed IGI recommendations with the 4630 wax and my candles have turned out great, I just switched to a different style of jar.
IGI recommends pouring this wax between 180 - 160 degrees, preheating your jar to 125 degrees. Since following those numbers with the new jar, my candles turn out awesome.