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steve1506

Brake Calliper Powder Coat

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I have a new set of brake callipers that I want to powder coat before fitting. To do this the seals etc will have to be removed. My question is will I need to replace the seals even though they have never been used.

 

Steve D

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If I were to have a new pair powder coated I would leave the pistons and seals in place with a bleed nipple in both fluid tracks to keep the powder out.

 

Then pull pistons, check and clean after coating has taken place.

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Ian

Thanks that sounds good advice, I have got silicone bungs to stop the powder in the other holes but maybe just use high temp tape in place of the dust cap over the piston . I would think that the seal should be good to survive the 200 deg c as the calliper must get hot in use

 

Steve D

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The seals will be ok for 150°C max so they will be damaged by 200 calipers don't normally get too hot. You could just paint them?

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Usually there baked at about 200 degrees and they will tell you if it would work or not I would get them wet sprayed as they can be baked at a lower temp

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I had my motorcycle ones done by Redditch Shotblasting. They needed the the pistons, seals and bleed nipples removed. They then plugged the small holes and high temperature taped the bores. Be carefully if it's a two piece (split) calliper as I have found some have seals at the joint. There were no problems in reusing the pistons and seals, just make sure the powder coating hasn't formed a lip at the cylinder opening which will damage the seal.

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Thanks to you all for your advise as I have the full capability to do the powder coat, mask etc in my workshop I will carry out the full strip as cb750 has suggested.

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