Why might I have a crack? Opinons please

[OH Cathy]

70% 464-30% J50 the new J50.

12 oz mason. Heated to 175 cooled to 150 and poured.

Great tops but always a crack at the wick, can fix with Heat Gun but

Getting cracks everywhere. Top to bottom, around the sides.

Any ideas? Tried pouring a little cooler, not much change. Tried cooling slower, same result.

73 degrees 60%humidity, always about the same.

[topofmurrayhill]

Another way of looking at it is, why should it work?

The parasoys on the market are usually blended from basic raw materials and designed to work well based on extensive testing. When you take two pre-blended waxes that are designed to work on their own and mix them together, the results can be unpredictable. Sometimes the ingredients don't blend together harmoniously.

Cracking or poor glass adhesion aren't unusual results when you add 30% of a paraffin-based blend to a soy wax. You can try a different proportion of those two waxes or try substituting waxes and see if you get a result more to your liking.

Another option is to select an existing parasoy blend.