Penetrant Testing is 100% performed on Stainless Steel, Duplex, Super Duplex , Nickel Alloy castings and all machined surfaces of all steel casting, Penetrant Testing is done to identify Cracks and surface defects. Water Washable and Solvent Removable methods are practiced at Aruna in all the 2 facilities. Penetrant Testing is done as per customer specification in accessible areas. As a standard, Water Washable Technique is practiced in Aruna. Solvent Removable is done if requested in the Customer's inspection requirements.