How to get anodizing off aluminum grill?

I'm starting a '69 F100 and the grill needs polished out bad, its milky which I know is caused by the anodizing. How in the hell do you get the anodizing off to buff it?

 

easy off over cleaner and high pressure water.
dont ask how I found this out, as it was quite by accident.
an expensive accident.

 

This is true, oven cleaner does work quite well...
-Junkie

 

its not too invasive on aluminum?

 

we do it on bicycle hubs and various parts on occasion and never had a problem. I wouldn't soak it over night or anything...on and off. I should clarify and say that it works on *some* aluminum parts. One of my mechanics said that it'll work on some types and not others....and the worst thing that *could* happen is it could pit your aluminum or something of the sorts, but we've never had that problem. We've never had a problem in the bike shop... again, on and off.
That's my .02 good luck,
-Junkie

 

i buy the cheap **** at the dollar store and some rubber gloves. i use it to get the blue and red off of russel fittings, buffs out nice.

 

Sodium Hydroxide will slowly eat any aluminum and will dissolve and magnesium, or zinc much quicker to create pits.
If you spray on EEZEE OFF, ( active ingredient is sodium hydroxide) leave it 20 minutes then rinse off.
20 minutes and rinse off.
Spraying where necessary.
I've stripped several ford grills this way as they are to big for my strip tank.
A tank and soaking in sodium hydroxide is better as the finish is more even.
don't leave it too long or you won't have a grill.
You'll get a dull grey finish when it's done.
If it's still sparkly, it's still anodised.
It's not normally necessary to sand below 180 grit ater this process unless you need to remove damage.
Most scratches will have been in the anodising.

 

Blu Lightening (blulightening.com) sell some of the most wonderful stuff to remove anodizing, and is not harmful to the metal, check it out, you wont be sorry

 

The is nothing that will remove anodizing with out attacking the aluminum underneath.
Scientific impossibility.
Actually I just checked the site out.
They want $50 for a gallon of sodium hydroxide.
What a f****** rip that is.
Then they recommend you polish with blue magic.
Active ingredients include ammonia.
Not recommended for use on ANY metal.
It's an oxidizer.