Caswell Black Oxide Activator 1 Pint (Makes 1.25 Gallons)

Works as intended.

Follow directions and you will get good results.

Didn’t work as I needed, only grayed parts. Customer service was great, they refunded the purchase.

Doesn't work on very many metals. Also the finish will not stay on the metal without a clear coat. Tried it on d2, and 1095 cold and heated and still didn't work. Not impressed at all. Don't waste your money