Surface improvements [india] limited offers plastic media for vibratory and centrifugal barrel finishing, which is rapidly replacing conventional ceramic media for attaining high grade surface finishing. Because of its light weight and softness plastic media: does not impinge the component, especially relevant in non ferrous metals; burr rolling over problem is greatly reduced; does not work harden the parts; and has larger volume per unit weight. Also the self dressing property of plastic media scores over ceramic media, which normally gets glazed after use of about 25 to 30 hours. Plastic media is also capable of generating pre-finishes like pre-buff, pre-paint and pre-plate finish on components. Also low ra values are easily attainable. Works equally well even for ferrous metals.
