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HOW ZINGA WORKS...
Zinga is a unique form of corrosion protection because it provides both Active and Passive protection in a form that's as easy to apply as paint...BUT… Zinga is not paint. Zinga is an active zinc performance coating which works in conjunction with the metal beneath whereas paints are only passive barriers. Regardless of how thick paints are applied, they remain as barriers. Once they are breached corrosion sets in immediately. Despite this significant difference, Zinga is still often mistaken for a paint simply because it’s liquid and comes in a tin. But there are other, more subtle differences. For example it does not “skin over” in the tin because Zinga has an unlimited pot-life,it doesn’t go “tacky” like a paint and also the thickness of a Zinga coat cannot be measured wet because it flattens off and dries too quickly.
Cathodic protection, or active protection, arises from the zinc (the anode) sacrificing itself in favour of the base metal (the cathode) with the resulting flow of electrons preventing corrosion’s chemical reaction. In this way the protection of the metal is guaranteed, even when the zinc layer is slightly damaged. Other well established methods of cathodic protection include hot-dip galvanising (HDG) and zinc thermal spraying both of which exhibit a constant sacrificial rate of the zinc layer.
Within Zinga though this sacrificial rate reduces dramatically after the zinc layer has oxidised and the natural porosity have been filled with zinc salts. Additionally each zinc particle within the Zinga layer is encased and protected by the organic binder without adversely affecting the electrical conductivity. This enables Zinga to create nearly the same galvanic potential between the zinc and the steel as hot dip galvanising but with a lower rate of zinc loss because, put simply, the binder acts as a “corrosion inhibitor” to the zinc.