Trying to find a Solidifier that is water Soluble

ghurty

Trying to find a Solidifier that is water Soluble

Hi, I am trying to find some sort of non-toxic
chemical/additive that can be added to a lotion type liquid (or a regular
liquid) that will cause it to harden. It does not matter if you have to do
something else (for example bake) for this to happen. BUT I nead it that
afterwards when you make it wet, it will turn back into its original form.
Thank You.