The FH-189 Barrel Plating Nickel-Free Micro-Cobalt Gunmetal Process is a high-performance, eco-friendly electroplating technology developed by Shenzhen Xinfuhua Surface Technology Co., Ltd.. As a leading manufacturer specializing in Electroplating Additives and Surface treatment Solutions since 2005, our company is committed to providing sustainable, efficient, and innovative Electroplating Processes for global industries.
The FH-189 process is designed to replace traditional nickel-based plating while maintaining the desired gunmetal black appearance, excellent wear resistance, and outstanding corrosion protection. With its nickel-free and micro-cobalt formulation, FH-189 provides a safer, greener alternative that meets international environmental regulations such as RoHS and REACH.
Electroplating processes have traditionally relied heavily on nickel-based coatings for decorative and functional purposes. However, increasing environmental regulations and rising concerns about nickel allergies have driven the demand for nickel-free alternatives.
The FH-189 Nickel-Free Micro-Cobalt Gunmetal Process is a barrel plating technology that offers a consistent and stable gunmetal black finish without the use of nickel. Instead, it incorporates micro-cobalt technology, which enhances hardness, adhesion, and Corrosion Resistance.
This advanced process provides a uniform coating, even on complex-shaped parts, making it ideal for mass production of small components. With optimized chemical formulation, FH-189 ensures a smooth, durable, and visually appealing black gunmetal finish, widely used in electronics, hardware, automotive parts, decorative accessories, and consumer goods.
Nickel-Free Formula – Safe for the environment and compliant with international green manufacturing standards.
Micro-Cobalt Technology – Enhances surface hardness, wear resistance, and adhesion.
Gunmetal Black Appearance – Produces a deep, uniform, and decorative black finish.
Excellent Corrosion Resistance – Provides long-lasting protection in harsh environments.
Consistent Plating Quality – Ensures uniform thickness and color across all parts.
Barrel Plating Application – Perfect for mass production of small and medium-sized components.
Eco-Friendly and Safe – Complies with RoHS, REACH, and other global environmental standards.
Cost-Effective Production – Extended bath life and stable chemical performance reduce overall costs.
Surface Decoration: Provides a stylish gunmetal black finish for consumer and industrial goods.
Protective Coating: Enhances durability by resisting corrosion, scratches, and surface wear.
Allergen-Free Plating: Eliminates nickel-related allergic reactions, ensuring user safety.
Mass Production Efficiency: Optimized for barrel plating, making it suitable for bulk processing.
Substrate Compatibility: Works effectively with copper alloys, zinc alloys, and other common electroplating substrates.
Rework & Upgrading: Can replace outdated nickel-based processes without compromising quality.
Environmental Compliance: Nickel-free formulation meets global environmental and safety requirements.
Enhanced User Safety: No risk of nickel allergies, making it suitable for consumer goods and wearables.
High Aesthetic Value: Produces a deep gunmetal finish favored in fashion, electronics, and automotive industries.
Stable Bath Performance: Maintains consistent plating quality over extended production cycles.
Strong Adhesion: Excellent bonding strength prevents peeling and flaking.
Wide Industrial Application: From decorative plating to functional coatings, FH-189 meets diverse needs.
Reduced Maintenance Costs: Long bath life lowers chemical waste and operational expenses.
The FH-189 Barrel Plating Nickel-Free Micro-Cobalt Gunmetal Process is widely applied in:
Electronics & Connectors: Providing durable and visually appealing finishes for connectors, terminals, and consumer electronics components.
Automotive Industry: Applied on decorative trims, buttons, and small hardware parts requiring black gunmetal finishes.
Fashion Accessories: Popular in jewelry, buckles, watch parts, and eyeglass frames due to its elegant black tone.
Hardware Tools: Used in screws, fasteners, and small tools that require both aesthetics and corrosion resistance.
Consumer Goods: Suitable for mobile phone accessories, keychains, and other high-touch items.
Medical & Wearable Devices: Ideal for products requiring nickel-free, hypoallergenic coatings.
Q1: What makes FH-189 different from traditional nickel plating?
A1: FH-189 is completely nickel-free, making it Environmentally Friendly and hypoallergenic, while still providing the same durability, corrosion resistance, and aesthetic appeal.
Q2: What kind of finish does FH-189 produce?
A2: It delivers a gunmetal black color with a uniform and smooth appearance, highly favored in decorative and functional applications.
Q3: Can FH-189 be used in both rack and barrel plating?
A3: FH-189 is optimized for barrel plating, making it especially suitable for mass production of small parts. However, it can also be adapted for rack plating with proper adjustments.
Q4: Is FH-189 compliant with environmental standards?
A4: Yes, FH-189 complies with RoHS, REACH, and other international environmental regulations, ensuring safe use worldwide.
Q5: Does the absence of nickel affect coating durability?
A5: No, thanks to the micro-cobalt technology, FH-189 offers excellent durability, wear resistance, and adhesion comparable to traditional nickel plating.
Q6: What substrates are compatible with FH-189?
A6: It is compatible with copper alloys, zinc alloys, and other standard plating substrates commonly used in hardware and electronics industries.
Q7: How long is the bath life of FH-189?
A7: FH-189 is formulated for long bath stability, reducing maintenance frequency and lowering overall production costs.
Q8: Is FH-189 suitable for medical or wearable applications?
A8: Yes, FH-189 is nickel-free, making it safe for products in direct contact with skin such as watches, jewelry, and wearable devices.
Common plating faults | Cause analysis | Processing method |
Light in color, white-haired | 1. Too much tin, too few supplements. 2. Too little blackener. | 1. Add 189 supplement 20-40 mL/L; 2. Add 2-5 mL/L of blackener; |
Bad positioning | 1. Low weight; 2. Excessive blackener 3. Too little锡 salt | 1. Add supplement to adjust the specific gravity to 17 Be. 2. Add supplements and tin salts; 3. Supplemental tin salt 0.05-0.1g/L; |
Turn yellow and discolored; bad position. | Too much blackener, too little tin salt. | Add tin salt 0.05-0.1g/L (Always dissolve with a chelating agent,) |
Very dark but yellowish | Excessive blacking agent, too little tin | Add tin salt 0.02-0.05g/L (Use a chelating agent to dissolve) |
Fogging and movement are not good. | Too much salt | Add tin salt 0.02-0.05g/L (Must be dissolved with chelating agent) |
The plating is very fast Time long hair yellow hair black hair mist | 1. Excessive hair dye 2. Excessive tin salt | 1. Hydrogen peroxide 1-2 mL/L; Carbon powder 1 g/L 2. Heat to 55 degrees, maintain for 2-4 hours, filter the plating solution. 3. Add tin salt 0.1-0.3g/L; add blackener 1-2mL/L. |
Plating hazy | Electroplating for too long, too much voltage | Shorten time (roll coat 15-25 minutes, voltage 4-6 volts) Hang plating for 30-50 seconds), voltage 2-3 volts |
Plating fading, uneven | 1. Too little tin 2. Too much hair dye. | 1. Add 0.05-0.1g/L of tin salt as a supplement |
When adjusting the PH of the plating solution with dilute hydrochloric acid, be careful and it must not be lower than 10. When adjusting the PH with ammonia water, be careful and it must not exceed 12.
2. Tetravalent tin salts must not be used as they may cause hydrolysis of the plating solution.
3. It is recommended to use the supporting products of our company for convenient maintenance and management.
4. It is recommended to regularly replenish complexing agents, supplements, tin salts and blackening agents. When adding them, it is best to do so simultaneously to maintain consistent coating color and normal positioning.
Supplement 189A, 30 kilograms per drum
2. Complexing agent 179B 30kg/barrel
3. Tin Salt 179D 25kg/barrel
4. Blackener 189C 30kg/barrel
Email:fuhuaguoji@yeah.net
Address: Room 2101, Building 1, Hegushan Huicheng, No. 35, Guangtian Road, Bao 'an District, Shenzhen City, Guangdong Province （Office Space）
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