PTFE in lubricants - pro? con?

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I use a Teflon paste type product on our company's Eurocopter EC135's. It is required to be used under the blade bolts (heads and nuts only, not shank) and various other titanium fasteners. This stuff is quite pasty and thick. Kind of like day old oatmeal, but more viscous.

It has the remarkable property of not washing away during flight into heavy rain. This helps it prevent corrosion on the steel and aluminum parts that the titanium bolts pass through.

It also seems able to totally prevent salt water corrosion on trailer lights submerged in the water. (I took some expired stuff home)

The product is called TP-42

Other that these very specific uses, Eurocopter does not use this stuff anywhere else on the heli.



Chris
 
Cujet, is this Molykote (Hilti) TP-42? I know it as chuck grease / antiseize, used on machine tools, etc; didn't know it would contain any Teflon?

Frank
 
Just to add to a comment I made earlier in this thread - and my interest in the efficiency -or not- of PTFE in lubricants is still not targeted at engine oil applications...

Quote:


...they (QMI) argued that DuPont allegedly overthought their position and now no longer would see the use of PTFE in engine oils as problematic per se...




and from DuPont's web site link

Quote:


Zonyl® fluoroadditives are sometimes used in formulations made for addition to the lubricating oil in internal combustion engines or other machinery using high performance oil. The chemical and thermal stability of PTFE particles is important to this use.





Go figure...
dunno.gif


Frank
 
There is an oil using PTFE(as well as graphite and molybdenum), called Synlube. They claim to have extraordinary qualities. Have anybody tried them?
 
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