Cosmoline on a Transmission? Anyone? Options

[detoxcowboy]

I just read in the vendors section of Cosmoline being used to coat a transmision for protectiveness after being cleaned.. Has anyone used this before? How does it hold up? (apperently it is used for fire arms and automotive, available in aresol and bricks)

Curious as I recently replaced my transmission and now have a very cleaned case..


Cosmoline is the trade name for a generic class of rust preventatives, conforming to MIL-C-11796C Class 3, that are a brown colored wax-like mass; have a slight fluorescence; and have a petroleum-like odor and taste (as detected when working with it).

Chemically, cosmoline is a homogeneous mixture of oily and waxy long-chain, non-polar hydrocarbons. It is always brown in color, but can differ in viscosity and shear strength. Cosmoline melts at 113-125 °F (45–52 °C) and has a flashpoint of 365 °F (185 °C).

Its most common use is in the storage and preservation of firearms. Previously, cosmoline was used to preserve other items. Entire vehicles can be preserved with cosmoline.

[charliew]

I would not want any paint put on my aluminum tranny unless it is a two part paint. I would need to study up on magnesium to know whats good there.

[Richard Casto]

I would not want any paint put on my aluminum tranny unless it is a two part paint. I would need to study up on magnesium to know whats good there.

Its a tough problem because there is tons of different opinions as to what to do. There is everything from do nothing, to rattle can paint, to coatings (some of which work via chemically converting the Magnesium surface) used by the aerospace industry.

Just like Jim, if a customer wants me to do something different than my standard rebuild, I can do that. Untouched, coated with Tectyl, painted, etc. All are up to the customer to decide.