Never heard of it before...
... but I'm a bit dubious that it's "six times" better than the best EP grease on the market. The web site is heavy on superlatives and buzzwords, but I was disappointed that there are no side-by-side technical studies comparing it to other available greases. If adding teflon to a synthetic grease is all that much better, then I wonder why the majors haven't come out with something similar.
I am reminded of the fad in the 80's of adding teflon to motor oils... the joke there was that if the oil filter in the motor was any good, it would filter out the teflon fairly quickly, leaving you with whatever base oil the product contained. And maybe clogging the oil filter in the process.
Obviously greases are not subjected to filtration but I still wonder just how effective teflon particles would really be... they are soft and easily squeezed out of tight areas... if a bearing is going to seize or a bushing is going to gall, due to improper fit/tolerances, I don't know that any lubricant can prevent that. And if something causes the grease to wash away I doubt that the teflon will hang around long enough to prevent eventual bearing failure. And there are marine bearing greases readily available that are already resistant to attack by water.
?Who knows, it may be a great product, or it might be an ok product that is over-hyped.
www.magnalube.com
