Hi there,

Yes, I did spend some time and effort on writing it up and in some ways, on paper, it's hard to explain.

Galling or galding is an interesting subject and phenomena.
The spelling of it varies. I think it's from the way you hear it depending from what part of the country you live in. I was raised in a southern school shop atmosphere. I heard it with a "D" like scalding hot.

The affect or effect of it happens when two surfaces of material have partial fused together. The continuing movement will keep tearing and pushing each other's material into each other until the motion stops. Not enough power or energy to do it or it shears adjacent lattices apart. Snap, Bang, or Pop!

This action creates mounds and valleys in each other's surfaces.
Much like the landscape of an ice glacier path, that grinds away at rocks and soil underneath it.



One can say during movement it is galding and when you get it apart and see it you can say the part has fail because it has galled! I think the "ing" messes with the brain or ears, take your pick?

Beside gall is leading into the medical world with gallbladder or when a personal inflection is intended about behavior. An example is like, "He has the "gall" to come in here now, after all of that!"

You are right, it has to do with something being seized! Bound up and hard to rotate.

In fact, it's the just step "short" of those of a totally melting of the two surfaces. Of which, that next level or term is called "friction welding" or spin welding and so forth.

The purpose or idea behind anti seize compound is not so much to do with any type of lubricant.

It actually interrupts several processes that occur between metals. It uses a sacrificial metal that does not react or interact with is neighboring molecules. Another object or surfaces.
Most of the time, it is of a non ferrous material, for use in a ferrous metal contact or applications.

The theory uses an actual element with what I want to say, has a relatively high atomic weight, that is not easily destroyed under a high temperature application. Not like other hydrocarbon lubricants that can be.

Even graphite or other variations of carbon coal byproducts were some of our first lubricants.
Animal fats, organic oils and clay types elements like silicone or lithium are minerals with a flake like lattice.

You can say the particles in anti seize are a "filler" that will allow molecular movement or spacing for movement in the process of being an electron barrier too boot!

The spark plug is a case of ferrous and non ferrous metals meeting head to head and they interact badly together.

The very "nature" of aluminum is not "natural." The electrons were forcefully joined.
It is formed by using massive amounts of electrical current heat and its magnetic field during time it's in induction furnaces help to force minerals and alloys together.

It is Truly an exotic metal and maybe one of our first!
It seems to me, that Nature's elements sure wants to break it back down into its white powdered beginning. Of course, it wants to do in good old natural wrought iron tool!

In either case, oxides form and have to be separated. That's where anti seize comes to help.
Again, a filler to keep down electron flow. If it can keep carbon (gases) out and coking up in there, we can get the plug back out!
There is a plating on the threads of a plug, because it would be difficult to put in in the hole, to help prevent this. It is micro thin plating and it can "gas off" over time.

Yes, anti seize is helpful like platings on metal bolts keep rust at bay!

This is a "renewable coating" that stays pretty good, since both of the commonly used metals copper or nickel particles are in it, those cannot melt at combustion temperatures, that are well below 2000 degrees.
The oil in anti seize is only a carrier for the particles. It has no function except for distribution.

Besides, the aluminum pistons and the head holding the spark plug will go bye bye at 1200 degrees.

I hop this answered those two questions.

Thanks for wade or wading through this with me.
Some weird spelling on those two as well! Wad, is that in gun shells or a shallow pool? Waddling??? Ok I'm .... Ing ... myself out of here, whew!
(:-)

Phil