http://www.orbic.co.uk/Orbic will post anywhere in uk i use em for everything even wheel bearings and belts for the car.
dont buy kluber from em though that i buy through their uk agent.
I know they use colloidal graphite in there high temp stuff along with sodium and sulphides i think, defo not good to smell makes you cough when you paint it on somthing red hot!! nothing will stick to it even molten magnesium!.

They also do solvent sprays dry lubes (Molibdenum disulphides)
Synthetic of all the above, oh and wicked anti rust.