Glass Epoxy Laminates

G-10 (named after the NEMA grade of the same name) is a fiberglass laminate composite material that was first introduced in the 1950s. It is an electrical insulator of high tensile strength meant to withstand high pressure. NEMA G10 is defined as being a combination of continuous filament-type glass cloth with epoxy resin binder. G-10 sheets are usually a few millimeters thick. TUFFLAM G10 materials are available in various thicknesses from 0.5mm to 70mm. Our G-10 Glass Epoxy Sheets are used in a variety of applications.

The manufacturing of G-10 is similar to standard phenolic and carbon fiber laminates. Tufflam® G-10 is produced by either Wet Laminate process or by Prepreg process. As no filler is used during the manufacture of Tufflam® G-10, the manufacturing results in a natural green colour (or natural yellow, depending on the type of resin used).

G-10 has a high mechanical strength, good insulation resistance, dielectric loss, and dielectric strength under dry and humid conditions”. G-10 is also impervious to liquids like water and kerosene. When faced with economic constraints, phenolic resin and/or fillers may be used. Such phenolic/impure G-10 laminates are ideal for lower temperature classes, but fail when continuously used at elevated temperatures. Pure G-10 fiberglass epoxy composite, on the other hand, can easily overcome these problems, offer superior electrical and mechanical properties, and also work consistently at temperatures like 155° and 180° C. G-10 can also attain flame-retardant properties via processes like bromination. Flame-retardant G-10 is often called as FR-4 insulation.

Decorative variations of G-10 can be produced in many patterns and colours. Such customized designs are used to make handles for knives, grips for firearms, etc. These can be textured (for grip), bead blasted, sanded or polished. G-10 also finds use in windsurfing, as it is resistant to impacts. NEMA G-10 is usually preferred in its natural green, natural yellow or black colours. Other custom coloured laminates can be prepared by introducing pigments of the desired colour during the manufacturing process.

At SAM Associates, we manufacture G-10 glass epoxy laminate sheets and products, custom-fabricated to cater to the specifications and needs of every client. To know more about this thermoset rigid laminate, or to receive our lowest quotations, press the button