I finally got my filthy hands on a tube of GREASE by Superlube:
And here my quick and final thoughts on it:
+ resembles the stuff which China factories use for pre-lubricating anodized threads and o-rings of production lights. it is very grease-like but clearly also has lubricating properties.
+ has physical consistency (viscosity and stickiness) very similar to cooled nivea or tooth paste
+ like toothpaste it is sticky and adheres well to any contacting surfaces but it is nowhere near as sticky, stiff and §$%&! as silicone grease: silicone grease is the worst regarding glue-like stickiness and "thickness" (but the very best for sealing threads and o-rings, no doubt!).
+ on bare aluminum threads it is 100% a nogo, especially if the aluminum threads are needed for twisty actions, such as quick turns back and forth for changing modes. on bare aluminum threads the grease's performance and results are as disastrous as with silicone grease. for twisty bare aluminum threads, such as Quark tactical UI, any light liquid oil is preferrable: Superlube Oil, or even better, Nano-Oil.
+ on anodized aluminum threads it does okay but that isnt surprising. on anodized aluminum threads one could even use yellow body fluid, soap water or nivea as lubrication. honestly wtf needs lubrication if the threads are anodized?
+ on twisty stainless steel threads it performs okay, acceptable. nothing to complain about, although there are better lubing alternatives on SS threads such as Superlube Oil or Nano-Oil. actually if the SS threads are cut clean you probably dont need any lubrication on the threads.
+ on titanium threads it performs as lousily as other lubes. save your hopes and dont buy it for its performance on ti threads. one clever way to improve threading action of ti threads is to cover the threads with candle wax. the less the ti threads get in contact with each other, the better. for everyone ;)
+ on o-rings it does a satisfactory job. it performs right between reduced friction (the best: Superlube Oil!) and sealing (the best: silicone grease), i.e. a good compromise between both worlds. in addition, once applied, the grease seems to last longer over time, while oils such as Superlube Oil and Nano-Oil rather thin out and vanish (evaporate lol?). O-rings lubed with Superlube Grease remain lubed after a long time whereas o-rings lubed with the oily substances get dry after a while and need to get oiled again to keep the o-rings fresh and juicy.
+ i dont like Superlube Grease ymmv
+ summary: Superlube Grease doesnt serve well to reduce friction in twisty action threads but as a general purpose flashlight lube it is a cost-effective compromise between a friction-reducing oil and a protective sealing grease.
+ if i had to choose just 1 lubing product for all of my flashlight threads and flashlight o-rings, i would choose Superlube Grease. has good price/yield and all-round versatility. doesnt smell, safe for interhuman use (eat, ..), is popular on cpf and usa, USA made product, etc
+ buy 1 tube and be done with the subject matter once and forever henceforth