|
Re: Rust on tti coated headers
[Re: jcc]
#3202635
01/06/24 04:18 AM
01/06/24 04:18 AM
|
Joined: May 2012
Posts: 26
Detroit, MI
CCPcoatings.com
member
|
member
Joined: May 2012
Posts: 26
Detroit, MI
|
Depends which coatings you're referring to. Polished Ceramic on SS is still going to be limited to the temp restrictions, but it wont weep rust when it fails if you do. High Temp Ceramics on SS will pretty much last forever..... Most modern performance cars i.e. Challenger, Charger, Corvette, Camaro, Mustang, etc use either Kooks, ARH or Stainless Works headers which are all made from SS exclusively. Do anyone have any real world experience how these high temp coatings hold up on SS exhaust tubing?
|
|
|
Re: Rust on tti coated headers
[Re: poorboy]
#3202637
01/06/24 04:43 AM
01/06/24 04:43 AM
|
Joined: May 2012
Posts: 26
Detroit, MI
CCPcoatings.com
member
|
member
Joined: May 2012
Posts: 26
Detroit, MI
|
Coated headers hold up fine if its the right coating for the right temperature. Unfortunately, the most common being polished ceramics aren't right for most applications. As for stainless headers cracking, that hasn't really been the case in many years. Most modern performance cars and trucks have come with some form of tubular SS manifolds for years without an issue right from the factory. Further, most aftermarket headers for those modern cars and trucks are made out of stainless exclusively. In my 25 years years of coating headers I've only seen a couple cracked pipes and they were usually the result of some outside force. Like used to support a turbo, or in the case of a dragster, the bouncing of the dragster caused the headers to crack under the primaries because they were LONG up-swept headers. So, does the coatings hold up better then the old age header paint? Do the coated headers hold up better then bare steel headers?
The number of heating and cooling cycles, the temperature range the headers see, the fact they hang down under the chassis without protection, are all things headers have to go through. That has to make it hard for any protective finish to endure.
Stainless steel header tubes get brittle and the tubes tend to stress crack.
The header business has always had long life issues. One really only needs to look at how many cast iron exhaust manifolds have failed over the years, and one might give headers a bit of a break.
|
|
|
Re: Rust on tti coated headers
[Re: larrymopar360]
#3203005
01/07/24 03:12 PM
01/07/24 03:12 PM
|
Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
|
If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
|
Which side of the Intracoastal do you live on?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
|
|
|
Re: Rust on tti coated headers
[Re: jcc]
#3203021
01/07/24 04:20 PM
01/07/24 04:20 PM
|
Joined: Jan 2011
Posts: 15,900
Central Florida
larrymopar360
Stud Muffin
|
Stud Muffin
Joined: Jan 2011
Posts: 15,900
Central Florida
|
Which side of the Intracoastal do you live on? I live near east coast. My house is across the Banana River to the west and I'm 12 miles from beach.
Facts are stubborn things.
|
|
|
Re: Rust on tti coated headers
[Re: mopars4ever]
#3203044
01/07/24 06:15 PM
01/07/24 06:15 PM
|
Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
|
If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
|
I agree, except for the TR adjusters. I was wondering if moist salt spray combined with repeated temp cycling might be an extra factor multiplied by being near the coast. 12 miles takes that idea off the table. I have a car with black coated headers, which were promoted as being higher temp solutions then the normal silver, in practice they didn't convince me.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
|
|
|
Re: Rust on tti coated headers
[Re: jcc]
#3203107
01/07/24 09:23 PM
01/07/24 09:23 PM
|
Joined: Jan 2011
Posts: 15,900
Central Florida
larrymopar360
Stud Muffin
|
Stud Muffin
Joined: Jan 2011
Posts: 15,900
Central Florida
|
Yeah tie rod sleeves have plenty of surface rust but then they weren't ceramic coated. I should've painted the sleeves before installing them.
It was a real pain turning my car upside down for these pics!
Facts are stubborn things.
|
|
|
Re: Rust on tti coated headers
[Re: TJP]
#3203131
01/07/24 11:44 PM
01/07/24 11:44 PM
|
Joined: Dec 2005
Posts: 11,611
Fulton County, PA
CMcAllister
Mr. Helpful
|
Mr. Helpful
Joined: Dec 2005
Posts: 11,611
Fulton County, PA
|
Sooner or later, mild steel headers are going to rust. Quality of the coating only determines how long. Pull them off and send them to be redone is the only thing you can do.
If the results don't match the theory, change the theory.
|
|
|
Re: Rust on tti coated headers
[Re: CMcAllister]
#3203147
01/08/24 07:01 AM
01/08/24 07:01 AM
|
Joined: Jan 2006
Posts: 8,162
USA
360view
Moparts resident spammer
|
Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
|
Embrace the rust if it is made “less flakey” and almost like paint? That is the idea of COR-TEN steel such as grades ASTM 242 and ASTM 588 https://en.wikipedia.org/wiki/Weathering_steelsample quote Disadvantages Using weathering steel in construction presents several challenges. Ensuring that weld-points weather at the same rate as the other materials may require special welding techniques or material. Weathering steel is not rust-proof in itself: if water is allowed to accumulate on the surface of the steel, it will experience a higher corrosion rate, so provision for drainage must be made. Weathering steel is sensitive to humid subtropical climates, and in such environments it is possible that the protective patina may not stabilize but instead continue to corrode. For example, the former Omni Coliseum, built in 1972 in Atlanta, never stopped rusting, and eventually large holes appeared in the structure. This was a major factor in the decision to demolish it just 25 years after construction. The same thing can happen in environments laden with sea salt. Hawaii's Aloha Stadium, built in 1975, is one example of this.[26] Weathering steel's normal surface weathering can also lead to rust stains on nearby surfaces. end quote Note the bit about the arc welding rusting faster than the base steel. I see more and more electrical power line towers made of cor-ten steel than 20 years ago. I am more a fan of the South African invention: so called 3Cr12 steel, much less expensive than original 8Ni-18Cr stainless steel https://www.atlassteel.com/products/3cr12
|
|
|
Re: Rust on tti coated headers
[Re: 360view]
#3203155
01/08/24 09:04 AM
01/08/24 09:04 AM
|
Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
|
If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
|
Embrace the rust if it is made “less flakey” and almost like paint? That is the idea of COR-TEN steel such as grades ASTM 242 and ASTM 588 https://en.wikipedia.org/wiki/Weathering_steelsample quote Disadvantages Using weathering steel in construction presents several challenges. Ensuring that weld-points weather at the same rate as the other materials may require special welding techniques or material. Weathering steel is not rust-proof in itself: if water is allowed to accumulate on the surface of the steel, it will experience a higher corrosion rate, so provision for drainage must be made. Weathering steel is sensitive to humid subtropical climates, and in such environments it is possible that the protective patina may not stabilize but instead continue to corrode. For example, the former Omni Coliseum, built in 1972 in Atlanta, never stopped rusting, and eventually large holes appeared in the structure. This was a major factor in the decision to demolish it just 25 years after construction. The same thing can happen in environments laden with sea salt. Hawaii's Aloha Stadium, built in 1975, is one example of this.[26] Weathering steel's normal surface weathering can also lead to rust stains on nearby surfaces. end quote Note the bit about the arc welding rusting faster than the base steel. I see more and more electrical power line towers made of cor-ten steel than 20 years ago. I am more a fan of the South African invention: so called 3Cr12 steel, much less expensive than original 8Ni-18Cr stainless steel https://www.atlassteel.com/products/3cr12 I have a long time associate with Florida Power and Light share with me a few years back they are replacing all their Core-Ten steel HV transmission line towers with galvanized towers. That is literally thousands of miles of towers in Florida due to corrosion failures. Mostly due to bird droppings it seems. This conversion is easily seen along Highway 27 in Broward County where 4 HV lines run parallel and for the last couple of years the towers have been transitioned out. BTW, I do like your new TB's 
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
|
|
|
Re: Rust on tti coated headers
[Re: TJP]
#3203457
01/09/24 06:07 PM
01/09/24 06:07 PM
|
Joined: Jan 2011
Posts: 15,900
Central Florida
larrymopar360
Stud Muffin
|
Stud Muffin
Joined: Jan 2011
Posts: 15,900
Central Florida
|
Here are my TTI's that I had them coat black. This started very quickly is it possible you got the black "Rust prevention" coating vs. ceramic or other coating? I ask because most of the MFR's will coat their bare headers with crap paint to keep them from rusting. As soon as they see heat the coating is gone. I've often wondered why they don't use a hi temp paint. I would gladly pay 20 or 30.00 more so I didn't have to strip the crap off. Your comment and pictures make me strongly suspect you got the ""Rust prevention" coating. If not, I'd be calling TTI   No I definitely paid for ceramic coating and they even admitted a failure by their sub-contractor and offered to re-coat.
Facts are stubborn things.
|
|
|
|
|
