Painting a surface-rusty exhaust...?

[AJMBLAZER]

Just got this from mudboggink5.

Quite pleased and it's in great shape. Figured while it's sitting on my floor doing nothing I could do something about all the surface rust it has.

What other than just a wire wheel and high temp spray paint is worth doing? This is no longer my daily so the exhaust will be on there for a good long time and won't get exposed to road salt or the like unless my DD goes down (which god willing won't happen).

 

[K85 Octane]

man, I feel lazy just hearing you talk about cleaning it up. I'd spray it with some simple green and scrub it down with a strong brush. Then paint it with some black engine paint, 3 coats or so. Be done

 

[AJMBLAZER]

I just figure with the several hundred I'm going to have into it I might as well make it look nice and last a while.

 

[bp71k5]

I've never seen any paint stay very long on exhaust. Even the BBQ hi heat paint wears off in a few days. It'll probably stick better the farther away from the manifolds you get.

Edit: I take it back, the clay/mud baked onto my manifolds will not come off for anything. Try that!

 

[AJMBLAZER]

Kentucky is made up of clay and limestone so that might work.


Anybody used the POR15 exhaust stuff? Just sorta considering my options.

 

[swettysblazer]

I got Krylon High Heat Paint from Lowe's and painted my headers with it, its still on there after a month with no evidence of it coming up at all. I did 2 coats though.

 

[yellowK20]

Have it sand blasted first

 

[76zimmer]

AJ, I know there is a catalyst paint with zinc and a hi temp application out there somewhere, I just cant find it.

 

[AJMBLAZER]

AJ, I know there is a catalyst paint with zinc and a hi temp application out there somewhere, I just cant find it.

Catalyst paint....zinc...understand the high temp part. Explain?

 

[76zimmer]

A 2 part paint...base and activator type.

 

[AJMBLAZER]

Can that sorta thing be brushed?

Makes me think about the undersides of the truck too.

 

[diesel4me]

I have used hi-temp aluminum paint intended for steam pipes & radiators with decent results..the y-pipe will likely burn off anything you try about a foot back from the manifolds though,it gets real hot there,but pipes rarely rot that close to the engine anyway...

I've tried Duro "Extend" on exhaust and it does work,but it only seems to stay on the muffler & pipes,it must burn off the pipes closer to the cat and engine...I have also tried cold galvanizing compund in exhaust,its the same,it burns away on the hotter surfaces,but stayed nice on the muffler/tail pipe areas..