As a result of polishing (abrasive polishing), any microscopic fissures in the paint, smaller grazes and faded fender spots are removed. In addition to providing a good appearance, the surface is covered with a protective layer that fills fine asperities and pores in the paint.
Waxing gives the hull a pretty shine and provides better protection against external dirt reaching the plastic pores. Wax protects against salty seawater and acid rain and provides the cover with UV protection. There are also waxes meant especially for watercraft that provide UV protection even for heads, wooden parts, textile, etc. - in short for any parts that are in the sun.