Minor Scratch and Abrasion Removal
- Remove or reduce minor scratches and abrasions by following the
polishing procedure. 
 
- Take precautions in order to prevent distortions of vision.
 
- Double vision may result if an attempt is made to remove deep
scratches.
 
Do not remove deep scratches from an area in the driver's line of vision.
Replace the glass.
- The following procedure was developed using a cerium oxide compound.
Follow the manufacturer's directions when any other materials are used.
 
Recommended Equipment
|     •  | A low speed (600-1300 RPM) rotary polisher | 
 
|     •  | A wool felt, rotary polishing pad 7 mm (3 in) in
diameter and 51 mm (2 in) thick | 
 
|     •  | Powered cerium oxide mixed with water | 
 
|          | This is the abrasive compound. | 
 
|     •  | A wide mouth container in order to hold the abrasive compound | 
 
Polishing Procedure
- Mix at least 44 ml
(1.5 oz) of cerium oxide with enough water in order to obtain a creamy
  consistency.
 
| •  | If the mixture is too thick the mixture will cake on the felt
pad more quickly.  | 
 
| •  | If the mixture is too runny, more polishing time will be needed. | 
 
- Draw a circle around the
scratches on the opposite side of the glass with a marking crayon or the equivalent.
 
- Draw a line directly behind the scratches in order to serve as
a guide for locating the scratch while polishing.
 
- Cover the surrounding area with masking paper in order to catch
the drippings or the splattered polish.
 
- Dip the felt pad attached to the polisher into the mixture.
 
| •  | Do not submerge the pad. | 
 
| •  | Do not allow the pad to stay in the mixture as the mixture may
loosen the bond between the pad and the metal plate. | 
 
- Polish the scratched area.
 
When polishing the scratched area, note the following conditions:
| •  | Agitate the mixture as often as needed in order to maintain the
creamy consistency of the compound. | 
 
| •  | Use moderate but steady pressure when applying the polish. | 
 
| •  | Hold the pad flat against the glass. | 
 
| •  | Use a feathering-out motion. | 
 
| •  | Dip the felt pad into the mixture every 15 seconds in order
to ensure that the wheel and the glass are always wet during the polishing
      operation. | 
 
| •  | A dry pad causes excessive heat to develop. | 
 
| •  | Keep the pad free of dirt and other foreign substances. |