More Reasons to Use EonCoat as a Primer
Over the last year we’ve run a few tests in the corrosion chamber testing how topcoats work with EonCoat. We first mentioned back in November how EonCoat performs extraordinarily well as a primer, and because of its porous surface and PH of about 10-11, almost all paints bond to it well.
We’re learning more each day and what we’ve seen so far has been interesting, encouraging, and perhaps even game changing in terms of corrosion protection. No matter how hard we’ve tried, the scribe line would not corrode in a severe cyclic corrosion test conducted over 6 months.
We’ve realized this means that with a topcoat, EonCoat will also provide anodic protection in addition to the iron passivation layer to prevent corrosion. We can speculate that potassium ions, which leach from EonCoat, react with corrosive chlorine ions to form potassium chloride, and thus provide anodic protection. Anodic protection is when a sacrificial metal reacts with corrosive ions to prevent reaction with the protected metal, in much the same way that zinc anodes are used to protect the steel components of a ship in salt water.
This is a significant protection mechanism that we had not expected, and it provides a strong argument for top coating or sealing EonCoat.
We will be experimenting with other ways to take advantage of this mechanism without requiring an additional coat, but until then, using EonCoat as a primer is an excellent option for achieving corrosion protection that far outlasts any product on the market today.