DuPont Engineering Plastics PBT for Home Switch Panel Processing

A new type of safety system from Sibecx, France, for quick and easy installation of optical switches and sockets features front clips from DuPont® Crastin® PBT (polybutylene terephthalate). Polyester resin was chosen for its functionality and compatibility with DuPont's color and precision reproducibility.
The aesthetics of the interchangeable sockets and switches of 'Evolutys' can be improved by changes in colors and styles, and the front splint selected to represent the owner's interest or home can be obtained from colors and patterns. The plates can be molded from DuPont's Crastin PBT polyester resin and decorated with the sublimation printing technology developed by DuPont's partner Lons-le-Saunier in France. When used in semi-crystalline plastics such as Crastin, the sublimation print penetrates the material by about 0.2 to 0.3 mm, making the decoration highly wear-resistant and scratch-resistant. In addition, the patented dye carrier in the DuPont process can be smoothly adhered to the front plate without wrinkles to produce a highly precise pattern.
"This cost-effective method of placing mature, multicolored pictures, photos or styles on 'Evolutys' products helps us increase product added value," said Hosni BenCheikh, development manager at Sibecx. "Sublimation printing can have almost unlimited impact on the Crastin board."
An unfilled, super-tough, and flame-retardant Crastin material is used in the production of front cleats, and this requires multiple steps of assembly and disassembly. This material was selected for its rigidity, toughness, heat resistance (up to 1600C at sublimation) and abrasion resistance.

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