It's definitely both otherwise we wouldn't bother top coating half the structural steel we manufacture, everything could just be Zincanode 402 or similar, which

It's definitely both otherwise we wouldn't bother top coating half the structural steel we manufacture, everything could just be Zincanode 402 or similar, which is great if you love dull grey. https://www.duluxprotectivecoatings.com.au/products/ranges/zincanode/zincanode-402/ https://www.duluxprotectivecoatings.com.au/products/ranges/z...