#11
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Thanks Kent. What I'm trying to learn is the process that some engine builders, like VW on Beetle jugs, or even some motorcycle engine makers, used to turn their air-cooled cylinders black. Thought there was a specific process that made them black and that there was a purpose to it, probably rust prevention. Perhaps it is manganese-phosphate as has been suggested?
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Bill Longyard Winston-Salem, NC |
#12
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Quote:
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#13
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http://www.kecocoatings.com/racing/racing
The indy car guys use their coatings all the time for things like a-arms. Kephos product.
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Mark Last edited by scranm; 10-10-2014 at 10:01 PM. |
#14
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Thanks Mark. Those look like great processes, but I don't think they would have been available some decades ago.
I read through some of the pages and I wish I could use some of their products in my home shop. Some of their powdercoating technology would be very useful to me if it could be done on a small scale.
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Bill Longyard Winston-Salem, NC |
#15
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Meloniting might be what you are looking for. A gunsmight buddy uses it on barrels, frames, etc. According to the link below:
Quote:
Gun barrels get very hot.
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Kerry Pinkerton |
#16
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Very interesting stuff. I have been curious about these processes, for example what Joe Andrews uses on his adjusters and cradles.
Now I have to find out if any of the stuff you have come up with is available in the Netherlands. |
#17
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I've used the Precision Brand 'Tool Black' a 2 step process with mixed results. Sometimes it works pretty good and other times it won't do anything. I recently did 6 Holley 94 cast iron throttle plates, I was pleased with one of them, a couple were marginal and the others will need to be media blasted back to raw metal as they flash rusted immediatly.
I would not reccommend it.
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oj higgins |
#18
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Joris,
Did you have a look at Jeroen his site fir blackening stuff? Www.frost-auto.nl I've backened the bracket of my upper. Came out nice. Greetings, Frank
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Frank de Kleuver |
#19
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Thanks Kerry, and all. I've used Eastwood's blackening formula with poor results despite scrupulously following the directions.
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Bill Longyard Winston-Salem, NC |
#20
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i am an antique restorer by trade so metal blacking something i do regularily.
traditionally done by dipping steel in hot caustic soda.that leaves a black oxide layer which is absorbent. the piece is then dipped in oil and wiped clean and can provide an effective rust proof surface for decades-but must be dipped in oil which stops the water ingress. modern techniques use dipping in cold manganese phosphate etc with a similar effects but it still needs dipping in oil as again it leaves a porous surface[
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