Prepreg

          Also known as "PP film", is one of the main material in the production of plywood, mainly composed of resin and reinforcing materials, reinforcing material is divided into fiberglass cloth, paper-based, such as several types of composite materials, and the production of multilayer PCB prepreg used (adhesive films) are mostly fiberglass cloth reinforcement.

        Epoxy board is a high performance insulating material, its high mechanical performance, but also a stable job in a high-humidity environment. Ideal for electrical and electronic industry insulation material. Because resistant epoxy board had a high temperature but will not be deformed, so do not use in conjunction with heated metal, otherwise it will lead to deformation of the metal material.  pcb sheets fr4