I just had to have the rusted brake lines from the new flex hose to the ABS unit replaced on my Jeep. They used Cunifer brake line and said it will never rust. If its truly rust free why doesn't everyone use it?
Cunifer brake line
- Thread starter Donald
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It's more expensive, and some folks are so cheap they won't spring for it.
We have no problem with rust on anything under the car in So Cal, my 1994 LS400 still has original brake lines with no sign of rust and no need to be replaced anytime soon.
Cunifer is a brand of nickel copper line like NiCopp it will never rust!
I use it for almost every line inc trans, brake and fuel (different sizes), it really performs well in the salt belt.
OEM on the high end cars.
I use it for almost every line inc trans, brake and fuel (different sizes), it really performs well in the salt belt.
OEM on the high end cars.
It seems to me that labor is a factor here and I don't want to have to get it done a 2nd time in a few years,
The OEM brake lines on both our cars are at least coated in something. Better than the uncoated plain steel brake lines that used to be common on most cars made earlier.
Kestas
Staff member
OEM brake lines used to be terne coated. I think they switched to an organic coating to get the lead out of cars.
Copper and nickel are very expensive. I too think cars in the rust belt should be made of these materials, but the manufacturing facilities haves no way of knowing where cars will ultimately be sold.
I also qustion whether the Cunifer brake line, or other copper-nickel brake lines have the same burst resistance as the bundy tubing that is used in brake lines.
Copper and nickel are very expensive. I too think cars in the rust belt should be made of these materials, but the manufacturing facilities haves no way of knowing where cars will ultimately be sold.
I also qustion whether the Cunifer brake line, or other copper-nickel brake lines have the same burst resistance as the bundy tubing that is used in brake lines.
NiCopp Burst 17,000 psi 4200 psi working pressure.
Steel Burst 17,900 psi 4,500 psi working pressure.
The Nicopp has all US and international certs.
Another consideration is these pressure limits are for new lines. NiCopp doesn't corrode so i should maintain its ratings longer than steel which can begin to corrode in a short time in the salt belt and significantly weakened.
Quote:
UNS C70600. NiCopp® therefore has the strength and structural integrity of steel lines, but with the added benefit of being much more corrosion resistant. NiCopp® is also easier to bend and form than steel tubing. Nickel-copper, commonly referred to as '90-10 copper', has been used on several European vehicle brake systems since the 1970's, including: Volvo, Audi, Porsche, and Aston Martin.
Edit: Link added.
http://www.agscompany.com/automotive/11
http://www.agscompany.com/standard-steel
Steel Burst 17,900 psi 4,500 psi working pressure.
The Nicopp has all US and international certs.
Another consideration is these pressure limits are for new lines. NiCopp doesn't corrode so i should maintain its ratings longer than steel which can begin to corrode in a short time in the salt belt and significantly weakened.
Quote:
UNS C70600. NiCopp® therefore has the strength and structural integrity of steel lines, but with the added benefit of being much more corrosion resistant. NiCopp® is also easier to bend and form than steel tubing. Nickel-copper, commonly referred to as '90-10 copper', has been used on several European vehicle brake systems since the 1970's, including: Volvo, Audi, Porsche, and Aston Martin.
Edit: Link added.
http://www.agscompany.com/automotive/11
http://www.agscompany.com/standard-steel
Last edited:
What about flex lines for all lines. For my boat trailer brake upgrade I bought a kit of flex brake lines to go from the coupler to the first axle and across. It was not that expensive.
Kestas
Staff member
Two other material properties to consider are elastic modulus and fatigue resistance. I've read people reporting the copper alloy brake lines expand too much, resulting in a soft pedal.
These are all things to consider. I like the idea of brake lines that don't corrode.
These are all things to consider. I like the idea of brake lines that don't corrode.
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