FR4 laminated Epoxy Fiberglass Plastic Sheet  

FR4 laminated Epoxy fiberglass plastic sheet,which is usually used as reinforcing material in composite materials, electrical insulation materials and adiabatic insulation materials, electric roadbed and other areas of national economy. It mainly have glass fiber,ESD glass fiber I. Defibe and purpose  This laminated product is formed through heat pressing after electric industry alkali glass cloth dips into the epoxy resin. It has high mechanic and dielectric performance, applicable as insulation structural components for electromechanical/electrical equipment, as well as used under damp environmental conditions and in oil of transformer. And it can Withstand a variety of chemical solvents and acid erosion.   II.Technical requirement for surface  The surface shall tidy and smooth, bubble, impurity are not allowed. But slight scratch and color punctum are allowed. Edge is to be cut smooth. The delamination and crackl…