Type segmentation classifies Silicone Rubber Impression Materials into five viscosity‑based categories: Light‑body, Medium‑body, Heavy‑body, Putty, and Hybrid formulations. Light‑body material, characterized by low viscosity and rapid flow, captures fine gingival and subgingival details; it commands a premium price and contributes roughly 35 % of market value despite lower unit volume. Medium‑body, with balanced flow and strength, is the workhorse for most crown‑and‑bridge impressions, representing about 30 % of sales. Heavy‑body and Putty, distinguished by high elastic recovery and resistance to tearing, are preferred for full‑arch and bite‑registration applications, together accounting for approximately 25 % of the market. Hybrid blends combine properties of low‑ and high‑viscosity compounds to reduce handling steps, currently gaining traction and covering the remaining 10 %. The distribution of these types determines the overall market size, as manufacturers allocate production capacity and pricing strategies according to the relative demand for accuracy, ease of use, and clinical workflow integration.