Review of Alumilite Mold Making Products by Joe Rotella | Alumilite 

How would you be using the hot glue? Would you be casting with it?

You can definitely make a casting with silicone in your silicone mold! You'll just want to make sure to use something like our Rubber to Rubber mold release so the two silicones don't stick to each other! Some alternatives to Rubber to Rubber are vaseline and baby powder!

For this type of project you would want to make a 2 piece mold - High Strength 3 would work great!