HDG steel has many benefits, including durability, sustainability, and long-lasting corrosion protection. The exterior zinc layer will sacrifice itself to cover any damage to the surface. Additionally, the metallurgical bond created during the application process provides a tough and durable coating that covers all areas of the piece, including corners and threads (if the part is galvanized after threading). Both steel and zinc are infinitely recyclable materials, making the HDG process sustainable as well.