G-10/FR-4 Rods (G10 Rods) are produced from woven glass fabric epoxy laminate sheets which are cut, turned & precision-ground into into rods. Engineered to provide NEMA grade FR-4 properties. This material contains bromine on the epoxy resin backbone. G-10/FR-4 material meets the standard specifications of G-10, but is also UL94V-0, (thus named G-10/FR4). All standard G-10 sold by Professional Plastics is supplied in the premium version of G-10/FR-4 which meets Mil-I-24768/27. For Non-Brominated G-10, call customer service & specify “G-10, Non-Brominated to meet Mil-I-24768/2. Non-Brominated G-10 contains no halogens & is available as a Custom Order Only & is only rated as UL94-HB.