Hi Ash,
At work, We had to use Rocol HT70 bearing grease (it's a high temp grease) for lubricating some stainless studding (I dunno, Customers orders, We'll probably never use it again), The stuff is ludicrously sticky and noone likes using it because it gets everywhere and sticks like crap. I've just got some on my hand from looking at the tub for you and I'm still struggling to get it off.
It's also very thick like treacle so whether or not it's suitable I don't know but maybe worth a look?
EDIT: Just looked at the website and it says it's for slow speed applications only, Sorry. I just picked the tub up, read what it was and put it down again not wanting to hold it or touch it for longer than I had to haha.