What Is Garolite G10/FR4? Garolite G10/FR4 is one of the most versatile and widely used thermoset glass-reinforced laminate. It is made from an alkali-free electrical glass cloth that has been impregnated with an epoxy resin under the pressure and heat. The resulting glass-epoxy laminate is incredibly stable over temperature level with low-moisture absorption and a high strength-to-weight ratio.It is typically utilized in applications that requiredimensional stability, longevity, and resistance to humidity. It is made use of throughout a vast array of electric and mechanical applications. JY Machinery can process G10/FR4 in a range of shapes and configurations to fulfill the requirements of your project. G10 FR4 Material Properties GR10/FR4's material characteristics make it an excellent laminate for applications .The appearance or natural color of G10 / FR4 glass reinforced epoxy is light green to yellowish laminate,though we can special-order othe...