Chromatierung Gelb + Blau

Yellow Chromating – Yellow Passivation (SW10019.2) Chromating / Passivation for Aesthetic Finishing and Corrosion Protection of Zinc-Plated Surfaces Short Description The Yellow Chromating / Yellow Passivation SW10019.2 is a chemical solution for the non-electrolytic treatment of zinc-plated metal parts, producing a yellow to gold-colored protective and passivating layer. This layer enhances corrosion resistance, improves the appearance of zinc-plated parts, and mimics the look of traditional yellow chromating—without the use of highly toxic hexavalent chromium chemicals. The treatment is simple to perform in a dip bath without electricity and is suitable as a finish after galvanic zinc plating. Applications Yellow Chromating is used to: Enhance zinc-plated surfaces Provide aesthetic coloring in yellow to gold shades Improve corrosion resistance of metal parts Finish after galvanic zinc plating or accessory zinc plating Ideal for hobbyists, workshops, restorers, and industrial use The resulting color resembles the classic “brass-look” of traditional chromating with a slight iridescent effect—in an environmentally safer formulation. How it Works (Simple Explanation) Pre-treatment: Ensure the metal part has a sufficient zinc layer (≥ 2 µm). Dip: Immerse the zinc-plated part into the yellow chromating bath. Chemical Reaction: Within minutes, a yellow passivation layer forms as part of the zinc surface is chemically converted. Rinse: After achieving the desired color, rinse thoroughly with distilled water. The process can be stopped or repeated depending on whether a lighter yellow or more intense gold tone is desired. Advantages Simple, non-electrolytic application – no power supply or equipment required Chromium(VI)-free, safer and more environmentally friendly than traditional chromating Improves corrosion resistance of zinc-plated surfaces Produces aesthetic yellow to gold color with slight iridescence Ideal for finishing and restoration, e.g., old-timer parts Technical Information PropertyDetails / InformationProduct typeYellow Chromating / Yellow PassivationApplicationNon-electrolytic, dip bathSuitable forZinc-plated metal partsColorYellow to gold, slightly iridescentRequired zinc thickness≥ 2 µm recommendedImmersion timeA few minutes (depending on desired effect)TemperatureRoom temperatureChromium(VI)-freeYes (based on less hazardous Chromium(III)) Practical Instructions Ensure the zinc layer is sufficiently thick (≥ 2 µm), especially for self-zinced parts. Dip: Immerse the parts for several minutes—the exact duration controls color intensity. Rinse: Once the desired tone is reached, rinse thoroughly with distilled water and allow to dry. Color adjustment: Repeat dipping to achieve variations from light yellow to gold. Safety Instructions Even though the solution is Chromium(VI)-free and less toxic than traditional chromating, it is a chemical treatment: Wear gloves, safety glasses, and protective clothing Avoid contact with skin and eyes Rinse immediately with water in case of contact Use only in well-ventilated areas Do not ingest; keep out of reach of children Conclusion The Yellow Chromating / Yellow Passivation SW10019.2 provides a simple, non-electrolytic way to enhance the appearance of zinc-plated metal parts while improving corrosion protection. Its modern, Chromium(VI)-free formula makes it a safe, environmentally friendly alternative to traditional chromating methods, ideal for hobbyists, restorers, workshops, and professional galvanic applications.

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.