repainting rusty exhaust system - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 12 (permalink) Old 09-10-2007, 11:44 PM Thread Starter
 
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repainting rusty exhaust system

so my main exhaust pipes are rusty and look crappy and I just took them off because im dopping the engine out to work on it. can i repaint them? do i use rustoleum or a heat paint like radiator paint? any suggestions? im going to walmart tomorrow to get some stuff and i can pick some up there, just need to know what kind and also what color you guys think would be best. i think they were black before and thats fine
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post #2 of 12 (permalink) Old 09-11-2007, 12:01 AM
 
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Originally Posted by corteztk1982 View Post
so my main exhaust pipes are rusty and look crappy and I just took them off because im dopping the engine out to work on it. can i repaint them? do i use rustoleum or a heat paint like radiator paint? any suggestions? im going to walmart tomorrow to get some stuff and i can pick some up there, just need to know what kind and also what color you guys think would be best. i think they were black before and thats fine
If the rust is REALLY bad, you're f&*ked, and will need a new header. If not, I would recommend giving the rusted portions a nice sand before you repaint. It will be worth it in that it will help keep the rust from coming back, and prevent the paint from cracking and chipping.

You're going to want to use a high temp exhaust paint, or possibly a high temp engine paint. Check the can to make sure it will be able to handle the temps you expect to see. Exhaust headers can easily get up to 5 6 7 hundred degrees or more. Using high temp exhaust paint is a cheap fix. If you want to drop a few coins and have it be all around better (keep heat in better (you want that), durability, longevity, etc) look into getting the headers ceramic coated.

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post #3 of 12 (permalink) Old 09-11-2007, 12:08 AM
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Quote:
Originally Posted by ceo012384 View Post
If the rust is REALLY bad, you're f&*ked, and will need a new header. If not, I would recommend giving the rusted portions a nice sand before you repaint. It will be worth it in that it will help keep the rust from coming back, and prevent the paint from cracking and chipping.

You're going to want to use a high temp exhaust paint, or possibly a high temp engine paint. Check the can to make sure it will be able to handle the temps you expect to see. Exhaust headers can easily get up to 5 6 7 hundred degrees or more. Using high temp exhaust paint is a cheap fix. If you want to drop a few coins and have it be all around better (keep heat in better (you want that), durability, longevity, etc) look into getting the headers ceramic coated.

big diff between hi temp n engine paint. the engine may get 200-250, as the exhaust can get up alot higher. other than that I agree with ceo
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post #4 of 12 (permalink) Old 09-11-2007, 12:10 AM
 
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big diff between hi temp n engine paint. the engine may get 200-250, as the exhaust can get up alot higher. other than that I agree with ceo
True on the temps... that's why I said possibly a high temp engine paint, but to check the temp rating. Some of those matte finish paints with ceramic chips in 'em meant for engines can handle high enough temps I think
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post #5 of 12 (permalink) Old 09-11-2007, 12:22 AM Thread Starter
 
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this is just the main pipes. I have a yoshi slip on thats the can but im needing to get the pipes cleaned up
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post #6 of 12 (permalink) Old 09-11-2007, 12:24 AM Thread Starter
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post #7 of 12 (permalink) Old 09-11-2007, 12:30 AM
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Originally Posted by corteztk1982 View Post
this is just the main pipes. I have a yoshi slip on thats the can but im needing to get the pipes cleaned up
on that cbr?? the fairings hide them. trust me mine look like pure d chyt.
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post #8 of 12 (permalink) Old 09-11-2007, 01:58 AM
 
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I think you are best to get them sand blasted. Then go to an auto or paint store, there you can find HIGH temp. paint. It is for exhaust, usually has crushed ceramic finley mixed in. It is kinda pricy, but won't flake off your header. (the hottest part of the exhaust)
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post #9 of 12 (permalink) Old 09-11-2007, 11:08 AM
 
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VHT (Very High Temp) paint is the way to go: http://www.vhtpaint.com/products/sfID1/1/sfID2/12
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post #10 of 12 (permalink) Old 09-11-2007, 11:13 AM
 
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VHT (Very High Temp) paint is the way to go: http://www.vhtpaint.com/products/sfID1/1/sfID2/12
I've used that stuff on car headers before... good stuff. Make sure you do the full 4 step process they delineate on that web link.
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post #11 of 12 (permalink) Old 09-11-2007, 07:03 PM
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post #12 of 12 (permalink) Old 09-16-2007, 06:56 PM
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Take them off during the winter and have them ceramic coated... they will come back all nice and chrome like.

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