Interesting thread about M77 on sliders M-77 Assembly Paste - Honda-Tech From what I can see on the web, M77 is a moly type 'paste' for use on pads and shims, but silicone grease is more suitable for sliders. This thread seems to confirm it... Brake Lubricants ...as does the experience of myself and Doc with having slider pins caked in dried black gunk at the end, presumably molybdenum, plus consequent binding problems, evidently from using M77 or other moly on the sliders. However I am not out the wood either because it seems that using red rubber grease on sliders like I have done (as recommended to me by a certain person on another forum - CJ can you guess this person?) is wrong because the melting point is too low. Sooo.... ....sometime in the next few weeks while we have the good summer weather I'm going to clean the red rubber grease off the pins and replace it with silicone grease (left over from my unsuccessful clutch squeak lube attempt) which seems to tick all the boxes:- - high temperature - rubber safe - a wet not a dry lube - repels water. I think we've cracked it Holmes!!