Easily spot blacken steel (not stainless) or iron. Simply apply the black oxide gel where you want the blackening to occur. The gel keeps the blackener in place. Leave it on the part for 1-3 minutes and rinse off. Seal with Caswell Sealer for a dry finish.

Black Oxide Gel Kit Includes:

1.4 fl oz Black Oxide Concentrate Gel (covers approx 2 sq ft)
2.4 fl oz Caswell Sealer
3.Disposable Vinyl Gloves