Hey, it’s Zack, back with another Pro Tip Tuesday from Carbon Method!
We all know standing water is bad news for cast iron tools – and that’s still true even if your tools are Carbon Coated.
Now, Carbon Coat is a rockstar when it comes to handling humidity, but standing water is a different beast. As it evaporates, dissolved ions from the water – like chlorides, sulfates, and bicarbonates – get left behind. That concentrated mix lowers the pH in a very localized area, making an acid that can etch the coating and kickstart corrosion.
This is especially risky if you only have 2 or 3 layers of Carbon Coat. The thinner the film, the less acid, chemical, and corrosion resistance you’ve got.
The solution? Build up more layers. A thicker Carbon Coat film creates a stronger barrier and significantly improves your protection - even against standing water.