On Monday, November 5, 2018 at 9:52:55 PM UTC-5, wrote:
Ok, but coating only to prevent rust?

Don't know to what you're replying since you snipped it.

If you want to wear out a chain or cassette REALLY FAST put lots of lubricant on it so that it picks up lots of grit that becomes an ideal grinding compound and will quickly grind the chain and cassette and perhaps even the chainrings to uselessness.

Other than to prevent rust you ONLY need the lubricant to be between the rollers and the pins of the chain. Anywhere else risks picking up the aforementioned grit and beginning the grinding process.

Btw, that's why some people prefer to use a dry lube.

Cheers