Posted by Ben on September 10, 02 at 15:27:29:
In Reply to: Performance Coatings - links to sources posted by PeteL on September 10, 02 at 14:35:51:
Thanks! Good looking stuff and will file for future reference.
Stuff I'm looking for is dry lubrication. VERY low co-efficient of friction with very wide environmental ranges (heat, psi, rpm, moisture, acid, etc). It will help in one of my designes being noodled. Tungsten Disulfide and Molybdenium Disulfide both has similar coefficient of friction number of 0.03 using the inclined method (forget exactly how that test is done, but it's draging a piece of certain size/roughness over another similar surface that is at an incline..the force needed to pull it up is the "number" and don't remember the scale for that number).
As usual, invented by NASA/Mil/racing/etc. The racing part is where it gets into everyday stuff, like our vehicles.
Actually spec'ed out the tunsgten disulfide for the 48 inch dia disc brake designed for windmills and large robots. It was a 96 rpm for the windmills and 1800 rpm for the robots. The caliper slide bolts would "stick" some times because of the environment (windmill: high dessert, heat/cold, snow/sand. robots: steel mills, dock side, just about any manufacturing site, etc). Any grease or oil would glue itself together when the sand or metal flakes got in there. Ended up using that stuff on lots of things, as it was very affordable in production quantities. Cold process, so didn't mess up any heat treatments, nor finish (only 1-2 microns thick). The mechanical engineer working for me had worked at NASA and told me they invented this cool dry lub for the Mercury mission...
PS...Slick50 is pretty good stuff when applied correctly. Bad stuff when used in an internal combustion engine.