Someone recently asked me about troubles with layering melt and pour soap. Here are my tricks for helping to adhere layers of melt and pour soap.
Layering solid melt and pour colors is difficult but not impossible. There are a few tricks that I use when making fun loaves.
(1) Pour the soap base for the second layer as soon as the first layer has hardened enough (or formed a thick enough skin) to hold the weight of the second layer. The key is to pour fresh soap and pour it quickly.
(2) Optional step: Score the soap on the first layer to help the second layer adhere even better
(3) Spritz the first layer lightly with alcohol. This gets rid of grease and random particles of dust that might cause problems with the layering.
(4) Super cold environments make it difficult to cut soap and have the layers stick together so if you’re in a cold house and your layers are cracking, your soap might do just fine in a warmer environment.
I have visited your site many times in the past,(when I was making soaps as a hobby) and found it incredibly helpfull.
Thank you for all the usefulland intersting information.