Originally Posted by pjp98z

Avoid Plexus or any product containing Petroleum distillates like kerosene, naptha, toluene, or zylene. They will cause urethane films to discolor. The products dry out the film over time and open up the pores, essentially turning it into a big dirt sponge.

Every brand of film has their own specific care instructions, as many of the top coats vary greatly. Some cleaners work on some that will not work on others, just as some can be buffed, where others can't.

Check with the manufacturer of your film, as many of them offer a specific cleaner.

In the interest of full discolsure, I work for a film company.