As an alternative, GE Plastics has developed a new family of Lexan* PC resins featuring excellent scratch resistance. This new family of resins provides improved surface hardness without the requirement for hard coating. These materials are great alternatives for transparent applications such as soft keys, infrared lenses, bezels, and screens.

Independent laboratory tests have been conducted using the pencil hardness (1 kgf) standard, the Lexan* PC resin based materials achieved an H rating compared to a much lower 2B rating for ordinary PC - equivalent to up to five times the hardness of the standard material. The GE resins even surpassed painted acrylonitrile butadiene styrene (ABS), PC/ABS, and other painted resins, which only achieved a mid-range F rating. Further, if the Lexan DMX resin grades are hard-coated with silicone or acrylic, their pencil hardness increases to 3H.

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