painting aluminum window trim. 82 fairmont

[rab]

the car is a 82 ford fairmont, i want to paint all the window trim in a trim black color.
from what i have found out he window trim is made out of aluminum.

what im looking to find out is if i need/or a recommend a adhesion promotor for the paint to stick to aluminum.

called the local carquest who has a pretty good paint department.
i told the guy im looking to paint my window trim, in trim black and that its made out of aluminum. i asked him if there was a adhesion promoter for the aluminum and he suggested.

DUPONT 225S-4 aluminum metal clean and etch
25.00 for a quart and u mix it 2 to 1 with water

he said you just scuff it then wipe it with (dupont 225s-4) then paint.

anyone ever use this stuff or hear of it or have a nother recommendation?

[Protournova]

This might not answer your question exactly but Years back I fixed my wifes cars black trim with something like this. "Trimbrite T9005 Black-Out Tape" this might be the same stuff but whatever I used matched perfectly and held up very well, in fact better then the painted trim.

[NOT A TA]

Wax and grease remover, sand with 400, wax and grease remover, two coats SEM trim black #39143. 2 cans should paint all the trim on the car for less than 30 bucks total.

Edit: Do not paint with the SEM in high humidity or it will blush.

[astroracer]

Like John said only use a grey ScotchBrite pad instead of sandpaper. Much better finish and the Scotchbrite comforms to the trim shape exactly so it doesn't create dig or gouge marks.
Mark

[NOT A TA]

I like Mark's Scotchbrite idea, will try it next time. Never had any finish problems but it should be quicker than the tedious careful sanding.

[77thor]

Powdercoat the trim... it will last much longer than paint.