Apply a chip guard coating or truck bed liner to the lower front portion of the
fiberglass body. This will prevent the gel coat from chipping. I owned a molded
fiberglass trailer that had previously sustained extensive rock chip damage to the lower front portion of the gel coat. In addition the molded
fiberglass bottom had contours facing forward and those areas had chipped and then the fiberglass layer had weakened and broken through. I repaired the fiberglass damage and then coated the lower front facing areas with truck bed liner.