A graphene-based anisotropic thermal management layer engineered by Apex Nanofabrication for precision heat spreading and directional thermal conductivity. Thermex-G4 is manufactured as a thin composite sheet — typically 0.3mm to 1.2mm — with graphene planes aligned to channel heat laterally at rates exceeding copper while remaining thermally resistive in the perpendicular axis. It is bonded to heat-generating components using a nano-adhesive interface that eliminates contact resistance.