We had many customers asking if we sell black stainless and up until March of 2024 we had to tell them no. The same qualities that make Stainless Steel so sought after, such as being rust and corrosion proof, also prevents other molecules from adhering. Most applications where stainless is turned black are black powder-coated, which still isn't as durable as we would like to represent our hardware products. It is simply a coating on the silver base color.
After almost 20 years and a lot of practice, we found a way to color stainless black. The process permanently bonds with the stainless to form a nearly indestructible shell. Even hitting the new bolts with a hammer still doesn't effect the coloration. Black and both rust and corrosion proof. The acid bath that allows the molecules to adhere to each other does leave behind a slight magnetic property, however, it is not anywhere near what other metals are. Rust can not consume or adhere to the bolts. Some customers have said they see "brown" on the bolts, but this is just the magnesium in most areas from road treatments turning brown, but just wipes rust off. Actual rust doesn't wipe away.
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