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Thread: Caliper guide pin grease

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  1. Re: Caliper guide pin grease 
    #11
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    Copper "grease" is not designated, designed or made as a lubricant . It's intended use is as an anti seize compound. Copper is not a good lubricant or bearing material. Ordinary "LM" spec grease is entirely suitable. The small sachets of copper anti-seize supplied with brake pads are provided for application to the brake pads to prevent them from seizing ( or squealing ) to the brake pistons or calipers surfaces. It's essential that the caliper guide pins should be correctly lubricated to ensure that the calipers are free to float on the pins. I once had some non VW " reconditioned calipers" (supplied by a well known car spares Co.) which had the OEM hard chrome finish pins replaced with Zinc plated pins . Needless to say the calipers partially seized ( with brake overheating) despite the application of LM grease. Zinc is not a good bearing material. The OEM hard chrome smooth finish pins are made to provide a low friction surface. Only a small amount of grease should be applied to these pins.
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  2. Re: Caliper guide pin grease 
    #12
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    Quote Originally Posted by vwcabriolet1971 View Post
    Copper "grease" is not designated, designed or made as a lubricant . It's intended use is as an anti seize compound. Copper is not a good lubricant or bearing material. Ordinary "LM" spec grease is entirely suitable. The small sachets of copper anti-seize supplied with brake pads are provided for application to the brake pads to prevent them from seizing ( or squealing ) to the brake pistons or calipers surfaces. It's essential that the caliper guide pins should be correctly lubricated to ensure that the calipers are free to float on the pins. I once had some non VW " reconditioned calipers" (supplied by a well known car spares Co.) which had the OEM hard chrome finish pins replaced with Zinc plated pins . Needless to say the calipers partially seized ( with brake overheating) despite the application of LM grease. Zinc is not a good bearing material. The OEM hard chrome smooth finish pins are made to provide a low friction surface. Only a small amount of grease should be applied to these pins.
    Had sticking caliper problem burning smell rim on wheel red hot pulled apart and put some copper grease on and when changing all my brake pads did the same to the wheels never had problem again 2 years and still going strong


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  3. Re: Caliper guide pin grease 
    #13
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    These days I like to use ceramic grease on all things I used to use copper grease for.
     
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  4. Re: Caliper guide pin grease 
    #14
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    A good point there by VWCabriolet. Zinc coated pins, copper antiseize, salty water getting past the gaiters! see where copper and zinc are on the galvanic scale
     
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  5. Re: Caliper guide pin grease 
    #15
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    I use penrite copper Eze which states that it is for caliper sliding pins and other applications so why would they put this on the jar if it isn't compatible


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