Forgive my ignorance.. What could possibly justify a cost of $25,000 (US) for a liter of this Braycote material? Of course, I'm extrapolating - $25/gm, assuming 1000gm/l.
Sounds like a government contract rate to me. MoS2 and TFE-rich lubricants have been readily available for decades - and while they tend to be on the pricier side, I've seen nothing that touches $25-28/gm. On Mon, Apr 18, 2016 at 9:11 PM, Eric Korpela <[email protected]> wrote: > On Mon, Apr 18, 2016 at 2:53 PM, Chuck Guzis <[email protected]> wrote: > > > I did some research among the antique fan collectors on the web. > > Here's what's been recommended, in no particular order: > > > > And if you're looking to preserve an extremely valuable museum piece and > need the ultimate in non-reactive oil or grease, a perfluorinated polyether > (PFPE) "oil" or one with PTFE nanoparticles is virtually guaranteed not to > react with anything you might find a computer. But it is very pricey. $25 > a gram for Brayco 815z "oil" and $28 a gram for Braycote 601EF or 602EF > (with MoS2). The solvent you need in order to remove them is $0.25 a > gram. But a gram of this stuff goes a long way. I'd go with 602EF for > fan bearings. > > But it does somewhat reduce the need to worry about what happens if the > "oil" gets hot or hits rubber or paper or plastic. It doesn't dry out, > evaporate, or gum up at normal temperatures, since it's teflon and > molysufide microbearings in liquid teflon. I wouldn't buy it to use for a > personal machine unless it was one of a kind, or someone at the lab was > throwing out a tube of out-of-date braycote. (Which hasn't been the case, > I don't have a personal stash). >
