How does this stuff work?

[dykz34]

http://www.weldingsupply.com/cgi-bin...EF:OR:COLDGALV

I don't understand how it can stop rust from spreading .

[jmgtp]

pfft... it says how right there on the page jarkass!

"Electro Chemically Bonds With All Metals To Stop Creepage & Corrosion, Sprays On Cold, Heals Itself When Scratched."

:P

[RidgeRunner]

Electrochemistry.

Any zinc in electrical contact with iron/steel will corrode as a "sacraficial anode" rather than the rust corroding. It has to do with zinc combining with oxygen easier.

[RednBlack]

Electrochemistry.

Any zinc in electrical contact with iron/steel will corrode as a "sacraficial anode" rather than the rust corroding. It has to do with zinc combining with oxygen easier.

We use it on boats!

[StudlyCamaro]

Electrochemistry.

Any zinc in electrical contact with iron/steel will corrode as a "sacraficial anode" rather than the rust corroding. It has to do with zinc combining with oxygen easier.