Zinc plating is an economical sacrificial coating to protect parts from corrosion. Post-plate treatments, such as chromates and sealers, can offer additional protection.
| Specifications | ASTM B633-15 |
| Classifications |
KEY: Classification Number, Service Condition, Thickness Fe/Zn 25, SC4 (very severe), 25µm or 0.001″ Fe/Zn 12, SC3 (severe), 12µm or 0.0005″ Fe/Zn 8, SC2 (moderate), 8 µm or 0.0003″ Fe/Zn 5, SC1 (mild), 5 µm or 0.0002″ |
| Finish Type and Corrosion Resistance |
KEY: Type – Description, Minimum salt spray hours I – Without supplementary treatments, -- II - With colored chromate coatings, 96 III – With colorless chromate conversion coatings, 12 V – With colorless passivate, 72 VI – With colored passivate, 120 |
- RoHS compliant and non-RoHS compliant chromate conversions for zinc plating available.
- Corrosion testing according to ASTM B117 can be provided by request.
- Post plate sealers can be added to increase corrosion resistance to over 300 hours.
- On-site part baking for hydrogen embrittlement relief available.
- Detailed metal masking solutions are available to ensure that finishes are applied precisely.
