Penetrant Testing is 100% performed on Stainless Steel, Duplex, Super Duplex and Nickel Alloy castings. As these materials are non-magnetic, Penetrant Testing is done to identify Cracks and surface defects. Water Washable and Solvent Removable methods are practiced at Aruna in all the 3 facilities. Penetrant Testing is done as per customer specification in accesible areas.

As a standard, Water Washable Technique is practiced in Aruna. Solvent Removable is done if requested in the Customer's inspection requirements.