Before You Buy

• Gallon size – professional coverage: Supplied in a full 1-gallon container, this solution is intended for shop and industrial use. Coverage will vary depending on part size, surface condition, and application method (brush, wipe, or dip).
• Surface preparation matters: Parts must be clean and free of oils, waxes, lacquer, fingerprints, and residues prior to application. Proper surface preparation ensures even, consistent blackening.
• Rinse after blackening: Once the desired black finish is achieved, thoroughly rinse the surface with clean water to stop the chemical reaction and prevent over-darkening.
• Typical reaction time: Brass, bronze, and copper surfaces typically darken within a few minutes of application. Reaction speed and final color may vary based on alloy and surface condition.

Made in the U.S.A.