ChemPolish ET (RDX-1096)is an acidic bath used for polishing and passivating 300 series (austenitic) stainless steel as well as other alloys such as Alloy 42 (Kovar). Chemically polished surfaces are suitable for use in extreme environments including high vacuum, medical and aerospace applications. ChemPolish ET (RDX-1096)leaves a clean finish, free of etching,hydrogen embrittlement or halide induced stress cracking. Metal is removed preferentially from high points resulting in a smoother, more leveled surface. The surface is cleaned completely of any organic contamination and is free of soluble inorganic residues.