Grease or Copper Slip Caliper Pins


Stokes

Stokes

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Joined
Feb 13, 2010
Messages
459
What do you use for the two pins on each caliper?

I normally use quality copper slip but I have available high performance grease (used in excavator arms).

I'm thinking of using the grease instead as a front caliper got hot in the week at Blyton Park and I now have a couple cracks in the disc which I think is the aftermath of the heat.
 
You should use silicone grease. That's what's usually supplied with caliper re build kits for the purpose anyway.

It's very high melting point and will not effect the rubber dust covers like regular grease can
 
I've used a good quality cv grease in the past, worked then...
 
As said copper grease and rubber do not mix. It will make rubber seals and boots swell and weaken. You can get a specific caliper/ rubber grease usually red. But most silicone based greases should be ok if thats all you have.

Copper grease has become to much of a generic tool around most garages when in reallity its not suited to what most use it for. Alloy wheel centers for example Copper and aluminium dont react well when oxidation or water is added. Aluminium usually ends up corroding faster as copper has stronger resistances to corrosion.

Brake pads is pretty much one of the only things I will use copper grease on.
 
I think silicone grease has a higher melting point than that red rubber grease.
Red grease is cheaper though. Probably why garages use it for the job.
Pretty sure they use silicone grease from factory. And as said its used in re conditioned calipers.
 
Thats correct, from factory pure silicone grease is used......I use this, silicone with PTFE (Teflon) addition:

41BDSI-nruL.jpg



  • Synthetic grease based on high-purity silicone oils with the addition of PTFE micropowder
  • Safe for rubber gaskets and other rubber elements. Completely resistant to water and changes of temperature
  • Does not thicken at low temperatures and does not flow off at high temperatures
  • Addition of PTFE ensures exceptional lubricating properties even at high loading and temperatures
I also use it on all my OEM suspension bushings, to prevent them from drying out.
 
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