Vertex pistons are manufactured using exotic aluminum alloys called (low expansion) Silicon with 12% , 18% or 21% depending on the application.
Vertex pistons are manufactured using either a gravity cast or hydraulic forging process to make the blank parts and then the material structure is refined using a high tech Heat Treatment completed in an automtic HT implant with solubilization by quench in hot water. This heat treating process is cutting edge technology for this type of aluminium alloys. the machining process os completed using the lastest CNC machines and software as well as the usage of diamond tools.
By using this High Tech tooling, specific surface finishes can be achieve depending on the final application of the finish piston.
Every VERTEX Piston are coated with special Molybdenum Bisulphite black coating to aid during piston break in and reducing friction during the work inside the cylinder.
Recently, following the latest development used in Formula 1 engines.