High-Performance Industrial Insulation: Epoxy & Fiberglass Sheets

Epoxy resin boards (commonly referred to as FR4 or 3240 boards) are manufactured by impregnating fiberglass cloth with epoxy resin under high heat and pressure, serving as an indispensable insulation material in the electronic and electrical industries. This material series features exceptionally high mechanical strength and excellent dielectric properties, maintaining stable electrical reliability in both dry and humid environments. Due to its dense structure and extremely low water absorption, it is not only widely used as a substrate for Printed Circuit Boards (PCBs) but is also frequently utilized in motor gaskets, switchgear isolation panels, and various industrial components requiring high structural integrity. In addition to providing sheets in various standard specifications, we offer advanced CNC machining and custom die-cutting services, allowing us to precisely cut complex geometric shapes according to your engineering drawings to meet the stringent application requirements of the aerospace, automotive electronics, and heavy machinery sectors.