When it comes to using molds with resin, you might be wondering if you can use any mold with resin. Sometimes non-traditional molds work. Sometimes they don’t.
So what about casting resin in a soap mold?
I’m one of those resin nerds who’s always happy to try something new. Even if it means I can fail.
What resin to use?
Whenever you use molds, you need to use a resin meant for molds.
It ensures you get bubble-free results.
⭐️ BONUS: Get all the details on this topic in the beginner’s guide to epoxy resin casting.
Mixing the resin
But, before adding the resin, I sprayed the soap mold with Ultralease epoxy resin mold release. This is my go-to mold release. I used it when I cast resin into a gelatin mold, and I’m convinced it was the magic bullet to help me get out those castings.
I only added enough mixed epoxy to fill a mold cavity halfway. I wanted to make demolding difficult. Otherwise, I wouldn’t learn much about casting resin in a soap mold.
After removing bubbles with a heat tool, I covered it with a dome and let it cure for 24 hours.
The simple ‘twist and push from the back’ didn’t budge the cured casting. I had to pull the mold away from the side of the resin.
(The plastic is thin if you haven’t used soap mold. It is very similar in thickness and flexibility to a plastic, take-out food container._
I don’t think I will be casting resin in a soap mold again soon.
What have you cast resin into that you were unable to demold?
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