RTV-2 silicone is a highly versatile elastomeric material used to fabricate molds, special effects, prototyping applications, and various other products. It is known for its pliability, flexibility, durability, and resistance to extreme temperatures. RTV-2 silicone rubber is categorized into two series: condensation-cure (tin catalyst) silicone and addition-cure (platinum catalyst) silicone. Although both have similar characteristics, their curing processes and final properties differ, making them suitable for different applications. In this article, we will compare the two types of silicone rubber and discuss their properties and applications to help you choose the right type for your needs.