Caswell Black Oxide Activator 1 Pint (Makes 1.25 Gallons)

Works well

Works as intended.

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

Follow directions and you will get good results.

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