In general terms, paint sealants provide a barrier against UV, dirt & road grime; more recent formulas were enhanced to reduce the damage caused by bird droppings & tree sap.  However, traditional paint sealants will break down over time and most require reapplication.  MotorOne Protektiv HYDRO Paint Coating is a combination of traditional and advanced ceramics that requires no reapplication and is highly resistant to the abrasion caused by dirt & road grime.  This provides a permanent solution to protection against not just UV but a wide range of damaging environmental contaminates including bird & bat droppings, tree sap, bug splatter & fallen leaves, sunscreen,  rail dust & bore water etching.