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Painting Brake Discs


nelmo
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Based on the fact that it seems to be the first thing that rusts and it's very obvious, i was considering putting a coat of Hammerite on the central boss of the brake disc (obviously not the braking area) - is that ok to do?

 

I ask only because no-one ever seems to do this - i saw a brand new 5-series that looked great except for the trace of rust already appearing on the disc boss.

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Think you might need some higher temp paint than Hammerite, bit in principle sounds like a good idea. There's quite a few options if you search for high temperature paint on eBay ...... got me thinking now!

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Guest mower man

As above Hammerite black /silver never a prob temps on the road are unlikely to get to the point where there is a prob, track days may be different , caliper paint may be another route to follow mick :crazy:

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lots of discs are now coming from the motor factors either lightly painted or zinc plated fitted a set of expensive discs to a range rover sport they were black all over pad area soon went shiny on the test drive.

sprayed mine with a light coat of red oxide for the build ( going to be a while :( )

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yes you are right,

works the same way a grinding wheel is mounted.

something to do with the transference of energy.

I'm sure someone will come up with the full scientific/engineering answer.

I've very lightly painted discs on various cars over the years and never had any obvious problems,

if anything I would say that the expansion of rust between the two surfaces would be more of a problem,

how many people have had to use a large hammer to remove old discs I certainly have.

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