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Username Post: Refinishing exhaust manifolds        (Topic#360154)
NOVA447 
Silver Supporting Member
Posts: 25
NOVA447
Loc: Vienna, Virginia
Reg: 01-12-13
03-13-20 07:32 PM - Post#2788609    

I would like to refinish my stock exhaust manifolds so they look somewhat like the original, as-cast appearance but don’t get all rusty over time. Engine is out and now is the time. I appreciate any recommendations based on actual experience. Thanks.



 


Ray P W 
Contributor
Posts: 524

Reg: 09-30-15
03-19-20 06:23 AM - Post#2788963    
    In response to NOVA447

"Calyx" does not work. Rust returns quickly.

https://www.eastwood.com/factory-gray-hi-temp- coat...

Ray W



 
Shepherd 
Frequent Contributor
Posts: 2303

Loc: Lake George, NY
Reg: 11-11-15
03-19-20 11:50 AM - Post#2788983    
    In response to NOVA447

I used an Eastwood high temp natural cast iron coating. 1 year and some rust started to appear.



 
NOVA447 
Silver Supporting Member
Posts: 25
NOVA447
Loc: Vienna, Virginia
Reg: 01-12-13
03-22-20 10:57 AM - Post#2789251    
    In response to Shepherd

It's nice to know what doesn't work. Thanks.
Hopefully, someone will post a proven solution.



 
kwhizz 
"13th Year" Gold Supporting Member
Posts: 1197
kwhizz
Loc: Wisconsin
Reg: 01-01-07
04-18-20 03:08 AM - Post#2791412    
    In response to NOVA447

Glass bead and spray with Slip Plate...…. It's a Graphite coating works great....







 
NOVA447 
Silver Supporting Member
Posts: 25
NOVA447
Loc: Vienna, Virginia
Reg: 01-12-13
11-01-20 01:05 PM - Post#2806778    
    In response to kwhizz

Anybody have success with powder coating?



 
Mercedes 
Contributor
Posts: 322

Reg: 07-09-18
08-31-21 01:36 PM - Post#2826330    
    In response to NOVA447

Powder coating will simply burn off. Been there, tried that.

The Eastwood coating that you paint on is about as good as it gets. It is basically aluminum mixed in and when it heats up the aluminum stays on the cast iron and creates a nice finish. It doesn't last forever and has to be repainted every year or so.



 


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