G-10 Glass Epoxy Laminate — Rod

G10 rod is a solid round bar made from NEMA G-10 glass-epoxy laminate — woven fiberglass impregnated with epoxy resin and cured under heat and pressure. It offers a tensile strength of 40,000 psi, compressive strength of 65,000 psi, and only 0.11% water absorption, making it an excellent choice for insulating bushings, standoffs, and structural rollers requiring dimensional stability in humid environments.

Ready Plastics stocks G10 glass-epoxy rod in standard diameters available as cut-to-length pieces. Contact us for current diameter and length availability and custom-cut options.

G10 rod is turned and machined using carbide tooling. The woven fiberglass reinforcement is highly abrasive, so carbide inserts are strongly preferred over HSS. Moderate cutting speeds, positive rake tooling, and frequent tool inspection maintain dimensional accuracy. Dust and fiber extraction are important for operator safety when turning or drilling G10 rod.

G10 rod and G10 sheet are both NEMA G-10 glass-epoxy material, but in different forms. Rod is a solid cylindrical bar used for turned and bored components such as bushings, spacers, and rollers. Sheet is a flat panel used for milled insulators, jig plates, and structural panels. The base mechanical and electrical properties are the same for both forms.

G10 rod is used for electrical insulating bushings, shaft spacers, standoffs, guide rollers, bearing sleeves, and structural supports in electrical equipment, semiconductor tooling, and industrial machinery. Its low moisture absorption (0.11% over 24 hours) and high compressive strength (65,000 psi) make it well-suited for precision components that must maintain tight tolerances.