Request InfoUQG (Optics) Ltd.UQG Optics Sapphire ‘C’ cut windows/plates are extremely hard and scratch resistant useful for their (UV) ultraviolet, (VIS) visible and (IR) infrared transmission. The material has excellent thermal conduction and heat radiation, being resistant to common chemical acids and alkaline. Manufactured in a range of sizes and thicknesses it can withstand high pressures and suited for many applications when used as a window in harsh environments. UQG Optics has an extensive range of stock sizes for a quick delivery. 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