There is a small fee for samples shipped in the continental U.S. This can range from $10-$75. Products shipped outside the continental U.S. can be subject to certain restrictions. Freight charges may range from $75-$300.

Cast Iron

EPi has a hot black oxide salt mixture for blackening cast iron, malleable iron as well as some mild low carbon steels.

Ultra-Blak 404

Black Oxide Finish for Cast and Malleable Iron