Slider pin grease
Author
Discussion

Belle427

Original Poster:

11,145 posts

254 months

Tuesday 14th January 2025
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I have various greases at my disposal but wondered which you would choose on caliper slider pins that have a rubber insert.
I've read today ceramic grease should only be used on pad ears and is not really suitable for slider pins which is news to me.
Silicone seems to be favourite.

Skaben

338 posts

162 months

Tuesday 14th January 2025
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Silicon grease is usually recommended. I bought some dialectic stuff from amazon for a recent brake upgrade for less than a tenner.

HarvB

20 posts

15 months

Tuesday 14th January 2025
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Another vote for Silicone as it is kind to the rubber seals. You can pick it up from Toolstation if (like me) you're midway through a job and realise you haven't got any.
If the previous owners' attempts are anything to go by, copper anti seize will simply turn hard and seize the sliders, so don't use that!

Belle427

Original Poster:

11,145 posts

254 months

Tuesday 14th January 2025
quotequote all
I bought some new sliders and luckily they came with grease but I'm sure I have silicone on the shelf.

Ray Luxury-Yacht

8,918 posts

237 months

Tuesday 14th January 2025
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Been using molybdenum for years. Good for brakes because it is a high temperature grease.

thebraketester

15,373 posts

159 months

Tuesday 14th January 2025
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Mintex Ceratec stuff is really good.

GreenV8S

30,996 posts

305 months

Wednesday 15th January 2025
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Ray Luxury-Yacht said:
Been using molybdenum for years. Good for brakes because it is a high temperature grease.
Molybdenum based greases are great for bushes that are in constant motion. They're less suitable for joints that only move intermittently, because they lubricate by plating the bearing surface, and can actually bond the two bearing surfaces together if left static long enough. Caliper pins probably won't be left static for long enough for that to become a problem, but this isn't the sort of joint they're best for.

Belle427

Original Poster:

11,145 posts

254 months

Wednesday 15th January 2025
quotequote all
thebraketester said:
Mintex Ceratec stuff is really good.
I've used it for years but just a bit unsure on it's suitability with rubber inserts. Most slider pins I've dealt with are just metal.

Hereward

4,838 posts

251 months

Wednesday 15th January 2025
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Red rubber grease.

Matt_E_Mulsion

1,745 posts

86 months

Wednesday 15th January 2025
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Hereward said:
Red rubber grease.
This

Ray Luxury-Yacht

8,918 posts

237 months

Thursday 23rd January 2025
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GreenV8S said:
Ray Luxury-Yacht said:
Been using molybdenum for years. Good for brakes because it is a high temperature grease.
Molybdenum based greases are great for bushes that are in constant motion. They're less suitable for joints that only move intermittently, because they lubricate by plating the bearing surface, and can actually bond the two bearing surfaces together if left static long enough. Caliper pins probably won't be left static for long enough for that to become a problem, but this isn't the sort of joint they're best for.
I was not aware of that. Every day's a school day! thumbup

trickywoo

13,481 posts

251 months

Friday 24th January 2025
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Matt_E_Mulsion said:
Hereward said:
Red rubber grease.
This
Rrg will go hard and sticky way before silicone grease.

Belle427

Original Poster:

11,145 posts

254 months

Saturday 25th January 2025
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Pretty sure red rubber washes off very easily too, its generally used in assembly with rubber o rings, seals etc.
Probably a discussion that will go on forever but i will now use silicone in the future, a white silicone grease was provided with a new slider kit.
Ceratec is probably ok but i did read its not suitable where rubber is present, some sliders have a rubber insert which i think is to dampen vibrations which can swell leading to sticky operation.

Acuity30

835 posts

39 months

Saturday 25th January 2025
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Caliper slider grease aka red rubber grease. Same stuff which literally gets packaged with new sliders/rubber boots. Always used it and never had a caliper seize

Bainbridge

208 posts

58 months

Sunday 26th January 2025
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Another vote for silicon grease here.

Bainbridge

208 posts

58 months

Wednesday 29th January 2025
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Another vote for silicon grease here.

Acuity30

835 posts

39 months

Wednesday 29th January 2025
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Bainbridge said:
Another vote for silicon grease here.
Bainbridge said:
Another vote for silicon grease here.
Are you OK?