SOHC.co.uk Forums > CB750

Finishing switchgear

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UKROBK7:
Has anyone any experience in refinishing the castings of the 750 switchgear and the brake master cylinder?  It looks like the original finish was black anodising as the areas that have been protected from the sun are black whereas the areas exposed to the sun have faded to either a grey or brownish colour.  I have taken them to a local anodisers and they say they do not believe the switches to be anodised as they reckon the anodising would show up the grain structure of the casting plus the glossy "laquered" look on the switch gear has them puzzled. 

If I have them powdercoated the lettering may disappear,  if I have them 2K painted will the finish last with wear from gloved hands?

HELP!!!  Any recommendations??

rob

SteveD CB500K0:
Some ides here: http://forums.sohc4.net/index.php?topic=7355.0

and here: http://forums.sohc4.net/index.php?topic=49339.0

loads more if you search around on there.

UKROBK7:
Thanks for the links, plenty to read there!  Did you use satin or gloss powdercoat on your switches?

the-chauffeur:

Quite possibly the most comprehensive discussion on the subject (maybe) can be found here.

You'll see a post or two from me some way toward the bottom of the thread.  I had my switches powdercoated with a satin (semi-matt) finish 'cos it matched the originals on the particular model I was working on - but given how good the results were, I'd not hesitate to get others glossed. In fact, I'm taking a whole bunch of bits to get coated in the very near future and since my last visit, my powdercoater can now do both the paint coat (after all, powdercoat is basically paint) and a clear lacquer coat, too.  I intend to get my 750 bits done in gloss black with lacquer.

You're right though, the lettering is very tricky. Again, see the link for ideas, but gloss enamel and fine art brushes are a good place to start.

Hope that helps.

AshimotoK0:
ChrisR suggested to me to spray with PJ1 black coating,  heating both the housing and paint to around 70C. Then bake in an oven followed by a light application of Solvol autosol to give the correct finish like anodizing.

If I am giving your trade secrets away Chris just shout and I will wipe this post!!  ;D

http://cgi.ebay.co.uk/PJ1-BLACK-SATIN-ENGINE-CASE-HIGH-TEMP-SPRAY-PAINT-CAN_W0QQitemZ390236623783QQcmdZViewItem?rvr_id=218160010542&rvr_id=218160010542&cguid=c29cca8912c0a0aa13136113ff84ce78

I have not tried it yet but I suggested this to another ChrisB, who lives near me and his K2 was done like this  and was the runner up in this years CB competition for best restoration.

Cheers

Ash

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