Wanted to hear experience / advise on the topic.
I noticed that rear discs (stock ones along with the caliper) go to about 350-370C on a summer track day. The caliper outer body measures about 250C or so.
That to me puts the use of a silicone grease on caliper slider pins at a risk of evaporating/solidifying.
The Honda FSM doesn't say anything about greasing slider pins during brake servicing, although it does say that pins should be greased using silicone grease during overhauling.

So my question is what the take/experience of track goers ?
1) To use a good silicone grease, which is borderline with these temps (Some silicones claim up to 260C)?
2) Not to grease slider pins at all (as it is not for lubrication but for rust protection only there anyway)
3) Try sourcing Honda silicon grease 08C30-B0234M, which is difficult to find. I would not expect it being a silver bullet. I suspect it is a re-branded Shin Etsu G-420 or similar
4) Any other options? (Like Permatex Silicone-Base ceramic grease, which still sounds like gimmick, given its silicone base).

I had made a mistake previously by using a Ceramic grease on slider pins. It has been there for about 9 months without destroying rubber boots, but it actually turned out to be too thick and causing vibration during hard acceleration.

 

Some race team mechanics run slider pins dry or with just a light anti-seize compound.

I use Motorex White Grease (rated to 1400°C). My friend used Molybdenum disulfide grease. Also worth looking at Marine greases, they tend to handle high temp well.

 

Checked that one - it is a Lithium-based, which can destroy rubber, have you used one for long time?
Do you also use one on the front axle and it is not causing any vibration?

 

Never had issues with Motorex but I do a caliper rebuild (which involves changing all the rubber) every 2 years.

If you are concerned, you can use white lithium alternatives with PTFE that are rubber-compatible.

 

I have used Sta Lube Synthetic brake caliper grease on mine for a long time now. Its max temp is 250C from what I can find but I have not had issues using it at all on my car so far with track use but it is probably borderline. Rear brakes on this car get cooked pretty good on track.

 

Rears are my main concern as well.
I did brake servicing recently using the sulicone grease which claims 240c. Hope to get to a track day end of July, so I will see.
Had a bit more reading and apparently Synthetic oil-based ceramic greases should be rubber-friendly.
Pematex has one, which claims to have a Synthetic base and their site explicitly says that it should be suitable for pins.
Would keep that option if Silicone gets cooked.

 

I was running orange high temp permatex for years and years.
When hanging out at the track with the german car guys last year, they mentioned using Sil-Glyde. Everyone in spec e30, spec3, spec46 uses this stuff on their oem calipers with great results.
I switched over this year and noticed that it holds up better than the previous stuff I was using. Its cheap too!. I usually grease pins once every 4-6 track days. I was going to the track almost twice a month and really abusing the oem system. This stuff works.