Currently going through a phase of cleaning, repairing and modding vintage camera lenses. Managed to get a local source for pure acetone and hydrogen peroxide, and am currently using white lithium grease (which was quite hard to find!) as a relubricant for the focus rings. Whilst for smaller lighter lenses I find the viscosity of the white lithium grease to be just right, I would prefer something slightly thicker. After some Googling, must of the online lens guys recommend some form of helicoid grease, but I've been nearly all the vintage camera shops in Hong Kong but none have it.

Are my only options to purchase online?