Best for: Beginners, large industrial molds, and masters that might contain sulfur or other contaminants.
Known as the "workhorse" because it is more affordable and resistant to inhibition.
When buying silicone for mold making, the choice depends on your project's detail, the material you're casting (like resin or food), and how long you need the mold to last. 1. Choose Your Cure Type There are two main chemical families for silicone rubbers: