Can epoxy glass flake anti-corrosion paint withstand 98% concentrated sulfuric acid?
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There is an acidic water tank with an anti-corrosion coating on its inner wall: two coats of epoxy zinc-rich primer and one coat of epoxy glass flake heavy-duty anti-corrosion paint. It was temporarily filled with 98% concentrated sulfuric acid for 3 months. Will the anti-corrosion layer get oxidized? Are there any research papers on this topic? First, thank you all, my friends from Sichuan
It’s better to get a test done; it’s advisable to have one.
98 acid carbon steel can be used directly! Why use anything else? You can look up the corrosion rate of sulfuric acid (98%) on carbon steel! 3 months of usage time – that’s not long at all~!
The lower the sulfuric acid concentration, the greater its corrosiveness. At temperatures below 70 degrees and concentrations above 80%, it is advisable to use ordinary carbon steel; at temperatures above 70 degrees and concentrations below 80%, 304 stainless steel is recommended – it must be genuine and tested. Even better options include 316L stainless steel or graphite, although the latter may be more expensive