(H)
guys some fool cleaned my windshield with surf and it left white stains on the plastic at the bottom. i tried all sorts of polishes but to no avail. finally i gave that greymatter a whir and came up with a good tchnique.
things i used
1. pelikan eraser.
2.formula1 dashboard polish
3.cloth (regular and microfiber both will work)
this is how the plastic was before i did anything

then i rubbed the plastic with a rubber to remove the surf stains. i used the cloth to block the rubber particles from going into the fresh air vent.

i removed rubber particles and then sprayed with formula1 plastic polish.

this is the end result.
. compare wid first pic to see the diffrence, this was done to a 12 year old car so imagine how effective it is