There are many types of silicone for moulding available. Condensation and Addition cured silicones are the 2 most commonly used types.
Silicone Rubber Molding: Silicone Rubbers, Processes, Applications
INFINITIDY - How to Kill Stubborn Mould on the Silicon Sealant
Mold Armor 5.5 oz. White Mold Free Silicone Kitchen and Bath Caulk
Silicone Rubber Mold Material, an introduction - The Blue Bottle Tree
7 Silicone Mold Care Mistakes You Can Easily Avoid - Resin Obsession
Liquid Silicone Rubber(LSR): Properties, Molding, and Design - WayKen
Plastic Prototypes Using Silicone Rubber Molds
Two Piece Silicone Mold of Small Bust - Polytek Development Corp.
4 Cavity Oval Silicone Mold 3D Handmade Soap Forms Soap
Silicone Rubber: What Is Medical Grade Silicone?
Using Silicone Molds With Polymer Clay – Sculpey
Addition Cure Silicone Moulding Rubber