METASU YFA-ML (T) / HR
Trivalent chromium clear passivation agent for barrel plating
A passivation agent formulated for barrel plating, with excellent corrosion resistance and a coefficient of friction similar to hexavalent chromate.
・Coefficient of friction similar to hexavalent chromate can be obtained.
・Conversion coating agent that uses trivalent chromium.
・A coating with high corrosion resistance can be obtained with a single coat.
・Possess self-healing properties.
・Resistance to heat and corrosion is enhanced.
・Conventional chromating facilities can be used.
Product specifications
Attributes
| Appearance | Dark purple strongly acidic liquid (METASU YFA-ML (T)) Dark purple strongly acidic liquid (METASU YFA-MLR) Transparent colloidal liquid (METASU YFA-HR) |
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|---|---|---|---|---|---|---|---|
Bath makeup
| Chemicals used | Usage range | |
|---|---|---|
| METASU YFA-ML (T) | 50～150ml/L | |
| METASU YFA-HR | 5～50ml/L | |
Bath makeup
| Item | Range | Remarks | |||||
|---|---|---|---|---|---|---|---|
| Process temperature | 30～50℃ | ||||||
| Process time | 20～60 seconds | ||||||
| ｐH | 1.8～2.2 | Verify pH value before using. Adjust using caustic soda or nitric acid if the pH value falls outside of the specified range. | |||||
| Agitation | Use a slow pomp-stir setting to allow the concentration of the processing liquid to become homogeneous. To prevent any damage to the surface, allow for 5 to 6 seconds of stoppage time before lifting the basket containing the processed products from the vibratory stir. |
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Usage conditions
| Chemicals used | Replenishment reference (standard) | |
|---|---|---|
| METASU YFA-MLR | 20ml/100d㎡ | |
| METASU YFA-HR | 2～6ml/100d㎡ | |
* Adjust so that the pH value is within the specified range.
Replenish i the ratio of YFA-MLR：YFA-HR = 10：1 – 3
Inquiries about the product
Feel free to contact us if you have any queries or matters to discuss.
