Blue Chromate Conversion Coating – Chromium(III) Blue Passivation for Zinc & Zinc-Plated PartsProfessional Blue Passivation for Zinc – Superior Corrosion Protection with an Elegant Bluish FinishThe Blue Chromate Conversion Coating / Blue Passivation is a premium Chromium(III)-based conversion coating designed as a post-treatment for zinc and zinc-plated components. It forms a durable chemical conversion layer on the zinc surface, significantly improving corrosion resistance and extending the service life of the zinc coating.After treatment, the surface develops the characteristic light bluish tint typical of professional blue chromate conversion coatings, giving zinc-plated parts a clean, high-quality appearance while providing excellent long-term protection against corrosion.Unlike traditional blue chromate processes based on Chromium(VI), this modern formulation is based on Chromium(III) and is completely free of highly toxic Chromium(VI). It offers a safer and more environmentally friendly alternative while maintaining excellent protective properties.The product is supplied ready to use and is applied simply by immersion. No power supply, electrodes, or additional equipment are required.ApplicationsThe Blue Passivation is ideal for:Zinc-plated componentsZinc surfacesScrewsNutsWashersFastenersBracketsSheet metal partsAutomotive componentsClassic car restorationMotorcycle restorationMechanical engineering componentsIndustrial partsModel engineeringDecorative metal finishingSuitable for:Electroplating companiesMetal fabrication workshopsRestoration specialistsClassic car workshopsIndustrial usersProfessional workshopsHobby usersProduct BenefitsExcellent corrosion protectionDurable chemical conversion coatingChromium(III)-based technologyCompletely free of Chromium(VI)Easy immersion processNo power supply requiredNo electrodes requiredReady-to-use solutionCharacteristic light bluish finishExcellent underfilm corrosion resistanceIdeal as a post-treatment after zinc platingSuitable for professional and hobby applicationsHow It WorksThe Blue Passivation is applied immediately after zinc plating.Simply immerse the clean zinc-plated workpiece into the ready-to-use passivation solution.Without applying electrical current, a fine Chromium(III) conversion coating forms within a few minutes, protecting the zinc surface while producing the characteristic light bluish appearance.After treatment, rinse the workpiece thoroughly with distilled water and allow it to dry completely for maximum corrosion resistance and optimum coating performance.Application NotesDuring the conversion coating process, a small portion of the zinc surface is chemically converted. Therefore, the zinc coating should have a minimum thickness of 2 µm before passivation.The Blue Passivation is intended exclusively as a finishing treatment for zinc-plated surfaces.Suitable Base MaterialsThe Blue Passivation is suitable for:Zinc-plated steelElectroplated zinc coatingsZinc surfacesAluminium (depending on alloy and surface preparation)For best results, the workpiece should be clean, grease-free, and freshly zinc plated before treatment.Typical ApplicationsFrequently used for:Corrosion protection of screws and fastenersAutomotive restorationClassic car restorationMotorcycle restorationMechanical engineeringMetal fabricationIndustrial componentsSpare partsModel engineeringDecorative metal finishingAvailable VersionsReady-to-use Blue Chromate Conversion Coating / Blue PassivationAvailable in various container sizesQuality from Betzmann GalvanikBetzmann Galvanik supplies premium electroplating chemicals for professional surface finishing. Our Chromium(III) Blue Passivation provides outstanding corrosion protection, excellent process reliability, and the characteristic bluish appearance of high-quality zinc-plated components. It is the ideal finishing treatment for decorative and industrial zinc coatings.

Bright Zinc Electrolyte – High-Quality Zinc Electrolyte for Tank, Pen and Brush PlatingProfessional Corrosion Protection with Brilliant High-Gloss FinishThe Bright Zinc Electrolyte from Betzmann Galvanik is a high-quality, mildly acidic zinc electrolyte for producing uniform, bright and corrosion-resistant zinc coatings. It has been specially developed for private users, hobby electroplating as well as commercial and technical applications.With this powerful zinc plating solution, metal parts can be zinc plated easily and reliably. The resulting zinc coatings provide effective protection against oxidation and corrosion while giving the workpieces a high-quality, brilliant surface finish.The electrolyte is suitable for tank plating, barrel plating as well as pen and brush plating (tampon plating) and enables the coating of difficult-to-reach areas.Your AdvantagesHigh-quality bright zinc electrolyteEffective corrosion protection for steel and ironBrilliant, uniform zinc surfacesHigh deposition rateExcellent current efficiencyEven coating distributionFormulated without cyanidesFormulated without ammoniumSuitable for tank, barrel and pen platingSuitable for difficult-to-reach areasPrevents dendritic zinc growthProfessional quality from Betzmann GalvanikWhy Zinc Plating?Electroplated zinc is one of the most important processes for protecting steel and iron components against corrosion.A zinc coating provides:Long-term corrosion protectionProtection against oxidationIncreased service life of componentsDecorative metallic surfaceIdeal base for subsequent passivation treatmentsAdditional passivation can further improve both the corrosion resistance and appearance of the zinc coating.Typical ApplicationsIdeal for:ScrewsNutsFastenersSteel componentsIron partsAutomotive partsClassic car restorationMachine componentsToolsMetal constructionsRepair workModel makingSuitable base materials:✓ Iron✓ Steel✓ Copper✓ Copper alloysFor unknown materials, a test coating should always be carried out before application.Properties of the Bright Zinc ElectrolyteThe special electrolyte contains stable brightening additives that ensure a uniform and visually attractive zinc coating.Special properties:High gloss finishSmooth surface appearanceGood adhesionLow tendency for dendrite formationExcellent coating qualityReliable coating even on complex-shaped workpiecesApplication Instructions for Optimum ResultsProper preparation is essential for a perfect zinc coating.Before zinc plating:Clean the workpiece thoroughlyRemove all rustDegrease the surfaceRemove oxide layersUse clean disposable gloves to prevent renewed contamination from skin oils.For the electroplating process, zinc anodes are used.Rules for optimum results:Adjust the current correctlyAvoid excessive gas formation on the workpieceEnsure uniform solution movementKeep the distance between anode and workpiece as constant as possibleTechnical InformationThe Bright Zinc Electrolyte uses a mildly acidic formulation and enables easy handling while achieving professional results.Suitable for:Tank platingBarrel platingPen platingBrush platingTechnical DataOperating DataElectrolyte: mildly acidic bright zinc electrolytepH value: approx. 4.5Operating temperature: 15–60 °CWorking ConditionsCurrent density: 0.4–2.5 A/dm²Up to 5 A/dm² with solution movementTank Plating:Approx. 1.3 Volts (5 cm electrode distance)Approx. 2.0 Volts (10 cm electrode distance)Approx. 3.7 Volts (20 cm electrode distance)Pen and Brush Plating:3–7 VoltsRecommended: approx. 5 VoltsAdditional parameters:Plating time: 10–45 minutesDeposition rate:approx. 0.6 µm/min at 2 A/dm² and 20 °CAnode material: Zinc anodeCoating PropertiesUniform zinc coatingsHigh-gloss surfaceExcellent corrosion protectionGood adhesionDecorative finishIdeal base for passivation treatmentsSupplied AsReady-to-use bright zinc electrolyteAvailable in various container sizesQuality from Betzmann GalvanikBetzmann Galvanik stands for high-quality electrolytes and professional solutions in surface finishing. The Bright Zinc Electrolyte combines reliable corrosion protection, easy application and a premium high-gloss finish – ideal for hobby users, restoration specialists, workshops and professional applications.