Sherardizing or diffusion galvanizing is the application of a zinc layer, in a gas phase, to steel products. This zinc layer ensures that the product does not require chemical treatment. It significantly improves the durability of products that have been treated.

The best protection against corrosion is a duplex system.
SheraTop® is SHERART’s duplex system and is tailored to customer requirements. With the SheraTop® system, sherardized products are coated with a top layer such as powder coating, PTFE, organic coating, etc.