A few years back I reported to the newsgroups that when I put tar
coating on my steel roof and years later peeled away the dry hardened
tar that the steel revealed was crisp and shiny bright with no sign of
any rust.
So last summer I went to further test this observation. I took a old
rusty steel putty knife and immersed it into a can of roof tar and then
set it outside on a drum so that given 6 months of hardening and then
today I peeled the knife off the drum which allowed me to see the
surface of the putty knife. It was mirror shiny metal of steel as if one
polished steel. There was no evidence of any rust.
So again, I believe what has happened is that tar dissolves rust on
steel.
But I need a chemist to write out the chemical reaction taking place.
Is there another compound besides tar that dissolves rust on steel to
use as an analogy?
I think the important message of this discovery would be that all primer
coats of steel that need protection should be a first coat of tar and
then paint over the tar. Especially important for bridges.
Archimedes Plutonium
formatting link
whole entire Universe is just one big atom where dots
of the electron-dot-cloud are galaxies