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HH-756 Trivalent Chromium Passivator
HH-756 trivalent chromium passivator is a passivation agent for aluminum alloys and die-cast aluminum, which can significantly enhance the corrosion resistance of aluminum alloys. After passivation, die-cast aluminum alloys exhibit salt spray resistance of 72 to 360 hours, zinc alloys 48 to 72 hours, and aluminum extrusions 48 to 240 hours.
Category:
Trivalent Chromium Passivator
Keywords:
Huihong
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Product Description
【Applicable Materials】
Specifically designed for surface passivation (oxidation prevention) of pure aluminum, aluminum alloys, die-cast aluminum, zinc alloys, and other similar materials.
[Product Overview]
HH-756 trivalent chromium passivator is a passivation agent for aluminum alloys and die-cast aluminum, which can significantly enhance the corrosion resistance of aluminum alloys. After passivation, die-cast aluminum alloys exhibit salt spray resistance of 72 to 360 hours, zinc alloys 48 to 72 hours, and aluminum extrusions 48 to 240 hours.
【Product Features】
1. Does not contain hexavalent chromium, lead, cadmium, mercury, or other such elements; a green and environmentally friendly product.
2. The chromate conversion coating is uniform, with excellent corrosion resistance and adhesion.
3. Can be processed at room temperature. Excellent corrosion resistance.
4. Short processing time, minimal sludge formation, dense crystal structure, stable bath solution that is easy to maintain, and low cost.
【Product Characteristics】
Model: HH-756
Appearance: Dark green liquid
pH: 3 ± 0.5
Usage ratio: 10% (add 90 kg of water to 10 kg of trivalent chromium passivation agent).
Processing temperature: ambient temperature
Treatment method: soaking/spraying
Soaking time: 5–10 minutes
【Process Flow】
Workpiece to be processed—degreasing—rinsing with clean water—surface conditioning—rinsing with clean water—passivation—clean-water rinsing—(optional) (ultrapure-water rinsing)—drying.
【Instructions for Use】
Prepare an HH-756 trivalent chromium bath at a concentration of 10%, immerse the workpieces for 5–10 minutes, and then rinse thoroughly with clean water.
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【Application Areas】
Metal processing industry, hardware and electrical appliance manufacturing, hardware and electronics industry, aerospace components, automotive parts, mobile phone accessories, hardware furniture, medical equipment, and telecommunications devices.
【Precautions】
1. Continuous processing will result in a decrease in the concentration of the working solution. The concentration must be checked regularly and maintained at the specified level.
2. If accidentally splashed onto the skin, immediately rinse thoroughly with plenty of water.
[Handling, Storage, and Transportation]
Storage: During storage at ambient temperature, the packaging drums shall be kept tightly sealed to prevent the ingress of water or other foreign matter. When stored in clean, covered, and appropriately sized containers, this product will not present any operational, handling, or storage difficulties. Protect against freezing and avoid exposure to extreme heat or cold.
Packaging: 25 kg per drum, packaged in plastic drums.
| Length/cm | Width/cm | Height/cm | Volume/cm³ | Weight (including packaging)/kg | Remarks |
| 30 | 28.5 | 41 | 35055 | 26.5±0.2 | Customizable packaging specifications; The actual shipping packaging shall prevail. |
Retention period ： 12 months (calculated from the date of delivery under the specified conditions in the originally sealed drum; the sealed drum shall be tightly resealed immediately after sampling or use).
Transportation This product is non-flammable, non-explosive, non-corrosive, and free of heavy metals; it shall be transported as a non-hazardous material.
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We provide energy-saving and environmentally friendly metal surface treatment agents to a wide range of metal production, processing, and manufacturing enterprises, including chromium-free passivators, trivalent chromium passivators, magnesium alloy passivators, phosphate-free conversion coatings, eco-friendly film-forming agents, phosphating solutions for steel and galvanized parts, and environmentally friendly paint strippers, among other products.
Qualifications and Honors
We have obtained ISO 9001:2015 certification, ensuring consistent product quality. Our products have also been certified by SGS, STC, and hold surfactant certification, among others.
Partner Institutions of Guangdong University of Technology
Member Organizations
Gratitude-Driven Company
Trademark Registration Certificate
Surfactant Certification
Certification for Trivalent Chromium in Oxidizing Solutions
STC Certification
SGS Certification
Certificate of Registration
Company Showcase
Since its establishment, Huihong has consistently pursued technological innovation and independent brand development, placing great emphasis on innovation, R&D, and products. It attaches great importance to its brand image, takes promoting green environmental protection and energy conservation and emission reduction as its responsibility, and is committed to reducing the use of chemicals.
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Customer trust stems from professionalism. With wisdom and integrity, Huihong has always adhered to the principles of “quality first, customer first, honesty and trustworthiness, and truth-seeking and pragmatism,” continuously innovating and expanding.
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