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
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