A: No, it only reacts with copper-based metals. The solution works beautifully on solid or raw unlacquered brass, copper, bronze, and sheet tin, but not on stainless steel, aluminum, iron, chrome, or zinc unless they have been heavily plated with copper or brass.

A: Yes, the metal surface must be completely bare. Many modern brass items are coated in a clear factory lacquer or oil protectant to stop natural tarnishing. You must remove this clear coat first using paint stripper, acetone, or light steel wool so the solution can chemically bond with the metal.

A: Yes, the solution changes the actual surface finish of the metal. It is not a paint or a dye that will chip or peel away over time. However, because it creates a true living patina, high-touch areas will naturally buff out or lighten beautifully over years of handling. You can lock in your exact shade permanently by applying a clear wax or lacquer seal after drying.

A: The reaction happens almost instantly. It begins changing color within 10 to 30 seconds of application. The gradual process gives you complete control over your shade. You simply rinse the piece under cold running tap water the exact second you hit your desired level of aging to completely freeze the reaction.

A: No, it causes zero dimensional or structural changes. Brassager is engineered to oxidize the surface molecules safely without etching, pitting, or eating away fine engravings, threads, or delicate architectural details.

A: Save the liquid: Pour the used solution back into its plastic container using a funnel.

Filter out debris: Strain the liquid through a coffee filter if it contains dirt or metal particles.

Store safely: Keep the bottle tightly sealed in a cool, dark place.

Check the strength: Discard the solution when it stops darkening the brass; otherwise, discard it if it takes too long to work

• Remove Factory Coatings First: Many modern brass jewelry pieces are sealed with a clear factory lacquer to prevent tarnishing. You must completely remove this clear coat using acetone or paint stripper before applying Brassager, or the solution won’t be able to chemically bond with the metal. 
• Clean Away Fingerprint Oils: Wash the jewelry thoroughly with dish soap and warm water after stripping it. Microscopic skin oils can block the chemical reaction, leading to splotchy, uneven aging. Always handle the cleaned metal with gloves or tweezers.
• Freeze the Reaction Immediately: Submerge or brush the solution onto your piece. The reaction begins changing color within 10 to 30 seconds. The exact second you hit your desired shade, rinse the piece thoroughly under cold running tap water to completely freeze the reaction. 
• Detail and Protect: Use light steel wool or a polishing cloth to gently buff the raised edges of your jewelry. This rubs away the dark patina on the high points while leaving the dark aging in the recessed crevices for authentic vintage depth. Wash the jewelry with soap one final time, then lock in your look permanently with a clear wax or jewelry sealant.