What PPF does
PPF is a thick urethane film that absorbs impacts from road debris — common on I-93 and the Mass Pike in winter when sand is on the road.
What ceramic does
Ceramic coating is a thin, hard layer that repels water and contaminants and enhances gloss, but doesn't stop rock chips.
Cost comparison
Full-front PPF often costs more than a full-car ceramic coating; full-body PPF is significantly more.
The best of both
Coat over PPF to make the film easier to clean and keep it glossy.

