Hydrosilicon crosslinking is a two-stage wet chemical process. It used mainly to crosslink polyethylene. Its advantages over radiation crosslinking may be seen in a more homogenous distribution of the crosslinked areas resulting from the silicon molecules dispersing in the molten mass. Other advantages are in the lower investment and energy costs (e.g. no need for radiation shielding measures). The most convincing aspects of hydrosilicon crosslinking are greater resistance to ageing and improved mechanical properties.