Powder coating rear brake caliper

[bluevinny]

Thinking of powder coating mine as the paint's started flaking off after 18 months in use, so perhaps a good idea to sort out now before winter.

In terms of preparation, I'll remove all bore seals and pistons. Should I also separate the caliper halves to remove the O rings sealing the halves together? Are these O rings easily available?

Any problems in general? Is there an alternative robust finish available?

TIA.

[christhedivvy]

They'll need splitting to be powder coated. Seals are available from Fowlers of Bristol.

[HRHpenfold]

I just take them off, clean with sandpaper, and a wire brush, mask off and spray with etch primer, then satin black them,

Others recommend powder coating them though!
I normally buy a pack of 25 nitrile o rings from eBay, measure the size and order from a supplier, on eBay

www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR2.TRC1.A0.H0.Xnitrile+o+ring&_nkw=nitrile+o+ring&_sacat=0

It will be cheaper to order say a pack of 10, than buy them from a dealer!

[bluevinny]

Sept 3, 2014 17:45:52 GMT HRHpenfold said:

I just take them off, clean with sandpaper, and a wire brush, mask off and spray with etch primer, then satin black them,

This is what I did in the end. Seems to be holding up despite riding through the wet weather since the new year!

[CD]

Mine was powder coated and to be fair it cost only £20 and lasted quite well. But corrosion crept in from the bleed nipple holes. The body joint was ok but I had used a smear of Loctite 518 all around the edges to seal it.
I think a RHS front blue spot would be a much better option. It would need a new mounting plate and wheel spindle spacers but they are far more durable. It wouldn't over brake the wheel - disc too small.