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Brake master Cylinder painting

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K2-K6:
To make it clear from refinishing these, I doubt if anyone would wish to experiment (supplier of ano etc) on customer pieces, without you taking the risk fully.

Their knowledge of metal in various components is not definitive though, just based on the rate it dissappears in their custody  :)

Honda didn't make the mastercylinder though, but subbed out to contractors, the most likely of which would be aircraft manufacturing at that time who would certainly be familiar with metal finishing in critical component. Sochiro was after all an aircraft man in original training  too. Believe the design may even be Girling and patented.

All aluminium base can be anodised though as I understand it, but with different settings etc. Aircraft manufacturing of hydraulic valving would be the most suspect supplier at a guess as their stuff far preceeded this brake.

Where I trained it was routinely used for very light treatment on casting, that ultimately for crack detection and casting integrity reasons.

Often global description is given particularly when it arrives to market. Billet just means they machine from a block as that's what raw stock is called. Has become a trendy label for missuse generally.  That billet could have been next forged to give its form then machined and they no longer market as billet but machined from forged, thats not here in mc but generally. Mc is cast.

The original finish I'd only recognise as black onodised on all the examples I've seen, caps screwing on with a with characteristic anodised feel too.
Original maybe but maybe not repeatable with processing availability currently, that I can see.

K2-K6:
As example of simple difference:-

Brake caliper body is cast and then machined, in comparison to brake arm which appears forged then machined.

Casting not likely to withstand tensile load required when braking by pulling the arm, well not at that slim section it's made to. 

Oddjob:
I got the distinct impression that they didn't want to try as it may somehow contaminate their solution, if so I ain't really fault them as I'm betting it ain't cheap and if it's a big bath there's a lot of solution to replace just to see if it worked or not.  I was willing to risk it but they weren't.

Orcade-Ian:
Ken,
Having had such cracking results from Silver leaf Rub N Buff, I wonder what their Ebony stuff would come up like?  I've not seen black.  You would have to scotch the original faded anodic protection for a good key but at least you can re-apply it whenever necessary without too much trouble.  Just a thought!  For a tenner, I might give it a try!

Ian

Bummocks!  It's metallic ebony!  Back to't drawing board!

JamesH:

--- Quote from: Oddjob on February 21, 2023, 03:48:03 PM ---I got the distinct impression that they didn't want to try as it may somehow contaminate their solution, if so I ain't really fault them as I'm betting it ain't cheap and if it's a big bath there's a lot of solution to replace just to see if it worked or not.  I was willing to risk it but they weren't.

--- End quote ---
Ken - are you able to share details of the outfit you use for the ceramic coating? That master cylinder looks awesome

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