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insulation board is made of epoxy resin and glass cloth, type is 3240, high mechanical performance under notrmal condition, stable electrical properties under high temperature. It can be used as insulating parts for machinery and electrical equipment.
This kind of insulating materials have many types such as 3240.3240-1, Fr4, Fr5, G-10, G-11.
It working temperature is between 120 to 155degree.