Isn't she the girl at the bar who wouldn't say " NO " to anything ?
Actually, its a low temperature surface treatment designed for gun barrels. The manufacturer claims its not a coating, but rather actually enters and combines with the surface of the steel to alter it. The end result is a surface that resists corrosion( rust), is smooth, and has less friction on bullets when the gun is fired. It also prevents leading or lead build up, and would, if done in a ML barrel, probably help in keeping crud from attaching strongly to the bore.
It comes in both an oil and a paste form. To work, the part to be treated has to be thorough cleaned to bare metal, then heated in an oven to at least 100 degrees F.before the compound is applied. I suspect that it is also important that the heat be maintained for best results. You can learn much about it on the Web by using your search engine( google) and type in Moly fusion.