I'm with everyone else. Poorboys trim restorer is top notch. wipe your palstic down with alcohol and water 1:1 and massage the TR into the palstic. Let it sit for 5 mintues or so, maybe even heat it up with a hair dryer lightly, and wipe it down with a cloth. The protection it leaves behind on plastics lasts me 3-4 weeks and makes palstics bead wonderfully.
