for removing minor scratches and grinding marks The acrylic polishing kit consists of acrylic polish (polishing paste), a sponge, sandpaper and a polishing cloth. It is suitable for surface care as well as for removing minor scratches/grinding marks. If your bathtub or shower tray has dull spots, scratches or grinding marks, proceed as follows: Put 2 cm of polishing paste on a dry cloth and rub this into the dull area using a circular motion. Then rub down this “polishing paste” with a soft, clean cloth. If deeper scratches have arisen by mistake, then sand these down with 1000 sandpaper (across the scratches) until these are no longer visible, then sand it again with 1200 sandpaper to handle the resulting dull spot with polishing paste (see above).