NASA Coating Evaluation Report & Results
NASA did an experiment that shocked the coating industry. The study was conducted back in 2014 to find a coating that had corrosion protection properties, that had the lowest impact on the environment, had no zinc or heavy metal, & no isocyanate. It was astonishing to see the results, once it was all said and done. For the Full Report click here.
The experiment was simple in concept but required a good amount of time to complete. The National Aeronautics and Space Administration or NASA took some of the coating industry’s best corrosion protection coatings and compared them side by side. They were subjected to some of the harshest conditions to introduce corrosion. Some of the brands, were EonCoat, PPG, Sherwin Williams & Carboline, to just name a few.
How the Experiment Worked?
Before some of the test panels were coated a steel cup was welded onto some of the test panels. This made it possible to check how the coatings protected the welds. Then, they coated all the test panels with each individual brand of coating. Some of the coatings systems required 2 or 3 different coatings. After the coatings were all finished, some of the test panels were given an “X” scribe to check for corrosion under creep. The remaining test panels were left alone to check for adhesion & finish.
Once the panels were prepared. They were set outside on a stand that would have them sitting on a 45-degree angle facing the Atlantic Ocean. Then, every 4 hours, a sprinkler system would spray sea saltwater directly on the panels. This would happen over the next 18 months.
Test Panels lined up outside at a 45-degree angle.
The schedule was pretty simple as well. At each of these points, they were checking the coating finish, corrosion & overall performance.
- 0 months
- 6 months
- 12 months
- 18 months
Before, we go over the results of the test panels. It is important to mention that out of all the coating systems. EonCoat was the only coating system without VOCs. We were also 100% free of zinc, heavy metals, & isocyanates. No other coating met all of those standards in these tests. We were also one of two, single-coat systems. Sherwin Williams, Carboline, & PPG all had multiple coat systems.
Let’s dive into the “X” Scribed panels. The pictures speak louder than the words in this case. The image below shows the results after 18 months of very corrosive conditions.
These were the results for the plates that had the additional welded piece. This is especially important because welds are known to be the weak link of any structure when it comes to corrosion. The results of all the panels not coated in EonCoat prove this. Look at how well EonCoat performed.
The results speak for themselves. Now, it is important to note that there were 2 other coatings that performed pretty well in comparison. However, none of them were completely free of zinc, heavy metals, or isocyanates. They also weren’t inorganic, VOC-free, or a single coat system.