SPREE Two Part Silicone Rubber (SPR-RTV-072) is a premium-quality, high-performance RTV-2 (Room Temperature Vulcanizing, 2-part) silicone rubber specially formulated for creating highly detailed, durable, and flexible molds in demanding industrial, artistic, and prototyping applications. Supplied as a precise ratio system of Part A (Base Rubber) and Part B (Curing Agent),