I have a question about CP. I know you can put embeds inside CP, but my question is about CP that's already hardened. Can you add a layer to this AFTER it's hardened? Is there a trick to getting one layer to adhere to the other?
What do you mean by hardened? - an hour, fully saponified soap?
Do you mean pouring new soap onto already hardened soap? It is possible. The soap needs to be fresh - more than a week or so and it gets tricky. Once I tried painting the first layer with a thin coating of olive oil, thinking it would saponify and glue the old soap and new soap together, the way it will glue soap to a mold. Nope.
If you do this, gelling really helps. It melts the old soap a bit so the two halves stick together.
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