Blue Chromating – Blue Passivation (SW10025.1) Chemical Passivation and Surface Finishing for Zinc-Plated Metal Parts Short Description The Blue Chromating / Blue Passivation SW10025.1 is a chemical solution for the non-electrolytic treatment of zinc-plated metal parts, producing a blue to dark blue protective passivation layer. This layer provides effective corrosion protection, enhances the appearance of zinc-plated parts, and gives a professional metallic blue finish. The treatment is simple to apply in a dip bath without electricity and is suitable as a finish after galvanic zinc plating. Applications Blue passivation is used for: Surface finishing of zinc-plated parts Aesthetic blue to dark blue coloring Corrosion protection and surface stabilization Finishing after galvanic zinc plating Suitable for hobby, workshops, restoration, and industrial use The color ranges from light blue to deep metallic blue, providing a high-quality visual finish. How it Works (Simple Explanation) Preparation: Ensure the metal part has a sufficient zinc layer (≥ 2 µm). Dip: Immerse the zinc-plated part into the blue chromating bath. Chemical Reaction: Within minutes, a blue passivation layer forms on the surface. Rinse: After reaching the desired color, rinse the part with water and dry it. The color intensity can be adjusted by varying the immersion time. Advantages Easy, non-electrolytic application – no power supply required Chromium(VI)-free – safer and more environmentally friendly than traditional chromating Protects zinc-plated surfaces from corrosion Attractive metallic blue finish for decorative and functional applications Ideal for finishing, restoration, and industrial applications Technical Information PropertyDetails / InformationProduct typeBlue Chromating / Blue PassivationApplicationNon-electrolytic, dip bathSuitable forZinc-plated metal partsColorBlue to dark blue, metallic/iridescentMinimum zinc thickness≥ 2 µm recommendedImmersion timeA few minutes (depending on desired color)TemperatureRoom temperatureChromium(VI)-freeYes Practical Instructions Ensure the zinc layer is sufficiently thick (≥ 2 µm). Dip parts for several minutes depending on desired color intensity. Rinse thoroughly with water and dry after reaching the desired color. Repeat the process for deeper blue shades. Safety Instructions Wear gloves, safety glasses, and protective clothing Avoid contact with skin and eyes Rinse immediately with water if contact occurs Use only in well-ventilated areas Do not ingest; keep out of reach of children Conclusion The Blue Chromating / Blue Passivation SW10025.1 provides a simple, non-electrolytic method to enhance the appearance of zinc-plated parts while improving corrosion protection. Its Chromium(VI)-free formulation makes it safe, environmentally friendly, and modern, ideal for hobbyists, restorers, workshops, and professional applications.

The Zinc Electrolyte BMG-098.5 is a professional galvanic solution designed for high-quality zinc coatings on metallic components. This specially formulated electrolyte produces bright, uniform, and corrosion-resistant zinc layers on iron, steel, or copper – perfect for repairs, surface finishing, or long-lasting corrosion protection in workshops, DIY, or professional applications. This solution is mildly acidic, cyanide-free, and ammonium-free, enabling safe and straightforward use – suitable for bath, pin, or tampon plating processes. ✔ Reliable & Easy to Use – Galvanic zinc plating without complicated chemistry. ✔ Cyanide-Free – Safer and eco-friendly. ✔ Versatile Application – Suitable for bath, pin, or tampon plating. ✔ Professional Results – Uniform zinc layers with optimal brightness. ✔ For All Skill Levels – Perfect for hobbyists, workshops, and professionals. Technical Parameters Voltage values are approximate ParameterValue / RecommendationCurrent Density0.4–2.5 A/dm² (up to 5 A/dm² with movement)Bath Plating Voltage≈ 1.3 / 2 / 3.7 V (at 5 / 10 / 20 cm distance)Pin (Tampon) Plating Voltage≈ 3–7 V (≈ 5 V recommended)Operating Temperature15–60 °CpH~4.5Immersion Time10–45 minDeposition Rate~0.6 µm/min at 2 A/dm² and 20 °CAnodesZinc ⚠ Note: Voltage and current values are guidelines. Adjust according to your setup for optimal coating quality. Application Instructions Preparation: Clean and degrease components thoroughly. Setup: Connect the workpiece as the cathode and insert a zinc or graphite anode. Plating: Apply direct current; zinc ions deposit uniformly on the workpiece. Monitoring: Adjust process parameters to ensure the best layer quality. This standard procedure ensures durable zinc coatings, even on hard-to-reach surfaces. ⚠ Safety Guidelines  Zinc electrolyte is acidic. Wear gloves, protective eyewear, and suitable clothing. Avoid contact with skin or eyes. Work in a well-ventilated area and prevent discharge into drains or water systems. Package Contents Zinc Electrolyte BMG-098.5 in selected quantity