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Post Info TOPIC: Strip paint off an aluminum intake?


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Strip paint off an aluminum intake?


I bought an aluminum intake and it's been painted silver. I want to strip it but I don't want to sandblast it. They never look/feel right once they are blasted. 

What is a good way to get it back to the original finish?



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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What about bead blasting or using walnut shells?
There are places that also use dry ice with nice results.

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Glass bead blast. Not sand or oxide.



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65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


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I'd love to do a chemical strip if I could since I don't have a blaster but some of the reading I've done suggests there are some chemicals that will stain the finish.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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I've found that brightening bare textured aluminum, can be accomplished by scrubbing it with household comet. You'd be surprised.

You just have to get the paint off...



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65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


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Hmm, that's good to know.

I'm considering trying a small patch of oven cleaner in an inconspicuous area to see if it will strip the paint without staining.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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4SPEED427 wrote:

I'd love to do a chemical strip if I could since I don't have a blaster but some of the reading I've done suggests there are some chemicals that will stain the finish.


 I have a blast cabinet that is currently filled with glass bead, if you cant find an alternative means of stripping the paint.



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Buy some paint stripper and try a small patch. If it lifts it nicely without marking the aluminum, then do the whole thing, don't leave it on a minute too long, and powerwash all the loose paint off right away.

Then try the comet scrub.

At worst you can always repaint it.



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cdnpont wrote:

Buy some paint stripper and try a small patch. If it lifts it nicely without marking the aluminum, then do the whole thing, don't leave it on a minute too long, and powerwash all the loose paint off right away.

Then try the comet scrub.

At worst you can always repaint it.


 I'm hoping to find the natural look for it again. And if I don't like it, then the repaint will have to happen but this time it will be Chevy orange. It really will look original if I do that. Only those in the know will spot the Winters Foundry "snowflake" and realize it's not a cast iron intake.

t3.jpg



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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Buy NOS next timebiggrin



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To keep it natural once you get through the paint, youd  need to clearcoat it anyway?

After lifting the paint, test a bit of fine steel wool, 0000, it should shine up the aluminum without leaving scratches?



-- Edited by DonSSDD on Sunday 26th of September 2021 09:52:48 AM

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4SPEED427 wrote:

 


 I'm hoping to find the natural look for it again. And if I don't like it, then the repaint will have to happen but this time it will be Chevy orange. It really will look original if I do that. Only those in the know will spot the Winters Foundry "snowflake" and realize it's not a cast iron intake.

t3.jpg


 

I wanted to keep the "factory" look,

so I painted my new 4 barrel Edelbrock aluminium intake the "chevy orange"  on my 63.

And you're right most people looking at the motor don't even notice it's not factory.

-G



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DonSSDD wrote:

To keep it natural once you get through the paint, you'd  need to clearcoat it anyway?



 Won't that make it look too glossy?



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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Unless high temp, clearcoat tends to yellow over time.



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What about baking it in an oven. Turn it up to 500 degrees.

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I wouldn't use oven cleaner, I'd expect it to whiten the aluminum. I've always had mine glass bead blasted and I liked the finish. You can also wipe the fresh manifold down with WD to soften the clean look a bit.

ak

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Check your machine shop for their dip tank. Cleans up cylinder heads and blocks nicely.  They may be able to  adjust the chemicals in the tank.

Inside and outside of intake would be clean if done in the tank.



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That sounds like the ticket. Who knows whats inside the coolant passages.

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I have always been happy with how a light bead blast makes a factory aluminum intake look.283701CE-EDCA-4AB6-9E41-F1C4FD715E1E.jpeg



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A Poncho Legend!

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horder wrote:

I have always been happy with how a light bead blast makes a factory aluminum intake look.283701CE-EDCA-4AB6-9E41-F1C4FD715E1E.jpeg


 Hmm, my friend has a cabinet. Maybe I'll see if I can get a bag of beads and do it. That does look quite original.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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70 SS ACADIAN wrote:

Buy NOS next timebiggrin


 Haha, where on earth would I find one of these original!



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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The last one I had I used paint stripper then pressure washed it. It turned out like I had just taken it out of the box brand new. Matter of fact, it's the one I used on my "Chief's 468 BBC. That was a life time ago it seems.........

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A Poncho Legend!

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That is the reply I was hoping someone would give!

That might have been back when you could still buy good paint stripper? Or is it still available to the trades? It sure isn't out there for retail customers it seems.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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Brake fluid to strip
Aluma Brite to restore color

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I had thought about trying a bit of brake fluid but I was scared it would stain. Aluma Brite is new to me though. I'll have to look into it. 

How do you apply the brake fluid? Brush it on?



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars

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