Abstract
Rust is caused by the influence of water, oxygen and time. Air pollution and contaminants on steel surfaces speed up the corrosion process.
When corrosion is caused by condensation water, a micro-porous coating can considerably enhance traditional corrosion protection. in 4 distinct ways:
It delays the forming of condensation on the surface
It absorbs the condensation into the micro-pores during heavy condensation periods, spreads it in the porous matrix and makes it evaporate at a much faster speed than from a smooth surface. Thus it reduces the time corrosive contaminants are in contact with the surface.
It is anti-static and does not attract the various substances that air pollution consists of.
It reveals imperfections of the rust protection.
The micro-porous coat is consequently both reducing the corrosion activity time and minimizing the amount of aggressive substances contained in condensation that speed up the corrosion process.
Laboratory tests as well as full scale objects show that the life span of a traditional corrosion protection will be two to three times longer with a topcoat of a micro porous material than without one. In addition the micro-pore coat acts as an early warning system in case of defective or damaged corrosion protection.