Brake Caliper Assembly Grease

[Alex C]

Im having my Brembos stripped and powdercoated soon and will then have to reassemble (seals, pistons and boots). I have been advised (porschecalipers.com) to use DOW Coring 111 silicone lubricant when reassembling

Amazon.com: Dow Corning 111 O-Ring Silicone Lubricant (5.3 oz. Tube): Home Improvement

Dow Corning Molykote 111 Water Valve Grease - Lubricants - Oilybits.com - The U.K's Premier Bio Fuel Equipment Superstore

what do you guys use when reassembling calipers? Same stuff?

 

[<tuffty/>]

Only reason to use it I can see is to ease sliding the pistons in... its not like you have to re-silicon them every 5k miles etc..

Personally I have only ever used brake fluid to wipe around piston seals before assembly in the past... not sure I would want any other lubricant potentially mixing with brake fluid in the cylinders and contaminating it...

<tuffty/>

 

[Alex C]

thats what i thought until i saw these on porschecalipers.com

Products / Caliper repair kit 36mm - Genuine Brembo Caliper Repair Kit for Porsche Boxster s. Piston, fluid seal, dust seal and a grease

so i asked them and thats what they said. Its for the O-ring seal i think

also speaking to someone on seatcupra.net he said that he uses a grease when reassembling calipers, a special porsche grease that is pretty expensive stuff

but before all of this i thought everyone just used break fluid

 

[Jacko4130]

When i am rebuilding calipers at work we use a silicone lube. I belive its made by a company called "Hunters" and its not that expensive to buy.

 

[Alex C]

When i am rebuilding calipers at work we use a silicone lube. I belive its made by a company called "Hunters" and its not that expensive to buy.

is it only appiled to the o-ring seal? I searched for "hunters silicone lubricant sealant " couldnt really see much

 

[TDIb0y]

While we're on the subject, would you use this kind of thing on caliper slider pins too, or copper grease / red-rubber grease instead?

 

[a3tdi2001]

Silicone grease for any part that comes into contact with rubber or plastic. A light smear around exposed part of brake piston before pushing in, rear brake sliders, hydraulic struts on boot/bonnet, a smear on your door seals to stop the doors freezing shut etc...
Carlube now do a version for sensible money: Carlube Motor Oil - Carlube Silcone Grease
RS also do it for sensible money if you live near one: Buy Precison Lubricants RS Silicone Grease, 100g Tube RS ##MPN## online from RS for next day delivery.