Weld Overlay Cladding Weld overlay cladding is a widely used and effective method of protecting the internal surfaces of pipe systems, plant and equipment from corrosion. This article explains the process and reviews the options available using corrosion resistant alloys. Workstations To maintain our position as a leading specialist in corrosion and wear resistant weld overlay cladding for the oil & gas, petrochemical and process industries, requires the constant and comprehensive updating of the workstations at our Gloucestershire factory.