Coreweld 77HS is a  metal-cored wire designed to run at fast travel speeds, making it ideal for  robotic applications. Coreweld 77HS delivers high deposition rates with very  few silica islands, facilitating faster cycle time when material finishing and  painting are required. Optimal performance is achieved with 90% Argon/10% CO2 shielding  gas. Coreweld 77HS is best used for single-pass automated applications on clean  steel, but it is also capable of multi-pass, handheld semi-automatic  applications as well.