Paint - Chip Protection Coatings
Number 84-10-9 Date 3/84Subject: ANTI-CHIP COATINGS
Most late model vehicles have either a smooth anti-chip (gravel guard) material or the more familiar textured type applied to the lower front fenders, rocker panels and quarter panels.
In the case of smooth anti-chip, because of its smooth appearance, it is very difficult to detect..
Figure 1:
One method of detecting its presence is to check the film build in the areas that require protection (see Figure 1). Normal unprotected exterior finishes have a total film build between 3.0 and 4.0 mils while protected areas have a range of 5.0 to 11.0 mils.
When repairing existing anti-chip or adding antichip material where there was none, the following guides will aid in achieving either a smooth or textured finish. In any case, manufacturer's label directions should be read prior to application.