JSP® Blak-Ox produces the darkest, smoothest, deep-black patina available for silver, gold, copper, brass, and bronze. Formulated for jewelers and metal artists, this professional-grade oxidizing solution delivers a bold antique finish that enhances engraving depth and contrast.
The liquid mixture contains 3 oz of hydrochloric acid blended with proprietary darkening agents to ensure fast, even coloration. Simply apply directly for a rich black finish or dilute with water to create subtle shades of gray. Perfect for jewelry, sculptures, and decorative metalwork where a deep oxidized appearance is desired.
To prevent unwanted oxidation of nearby metals, always seal the bottle tightly, double-bag after use, and store away from metal surfaces. Handle with care and use in a well-ventilated area.
Key Features
Produces a Deep Black Patina – creates a rich, smooth antique finish
Adjustable Shade Control – dilute with water for gray tones or apply full strength for jet-black results
Works on Multiple Metals – effective on gold, silver, copper, brass, and bronze
Fast-Acting Formula – adheres evenly and dries quickly for professional results
Durable Finish – long-lasting coloration that resists fading or wear
Includes Brush-Top Bottle – easy to apply directly to detailed areas
Product Details
Product Name: JSP® Blak-Ox Patina Solution
Type: Liquid Oxidizing Patina / Blackening Solution
Size: 3 oz bottle
Finish: Deep black or adjustable gray tone
Compatible Metals: Gold, silver, copper, brass, bronze (not for aluminum)
Use For: Jewelry finishing, engraving contrast, metal art, restoration
Storage Note: Keep sealed and double-bagged away from all metal materials
Handling: Contains hydrochloric acid; handle with gloves and eye protection
As described in our Privacy Policy, we collect personal information from your interactions with us and our website, including through cookies and similar technologies. We may also share this personal information with third parties, including advertising partners. We do this in order to show you ads on other websites that are more relevant to your interests and for other reasons outlined in our privacy policy.
Sharing of personal information for targeted advertising based on your interaction on different websites may be considered "sales", "sharing", or "targeted advertising" under certain U.S. state privacy laws. Depending on where you live, you may have the right to opt out of these activities. If you would like to exercise this opt-out right, please follow the instructions below.
If you visit our website with the Global Privacy Control opt-out preference signal enabled, depending on where you are, we will treat this as a request to opt-out of activity that may be considered a “sale” or “sharing” of personal information or other uses that may be considered targeted advertising for the device and browser you used to visit our website.