Alzin is a Zinc alloy developed by CMI as a corrosion-resistant coating that’s applied by a mechanical plating process. The alloy offers protection to the ferrous metal component and is significantly more corrosion resistant than a conventional zinc coating, either hot dipped galvanized or mechanical galvanized.
Hot dipped galvanizing has served as the primary sacrificial corrosion protective coating for over 100 years. However, it does have some limitations and is often unsuitable for use on small components, washers and heat-treated parts.
CMI’s aim was to custom design and develop both an improved, yet compatible alternative coating to hot dipped galvanizing.
The firm says extensive testing and research has demonstrated that its Alzin coating offers a significant improvement in both performance and quality, when compared to hot dipped galvanized parts.
When Alzin is applied it eliminates the majority of problems that occur in other galvanizing processes. It also has its own benefits including improved corrosion protection - sacrificial protection due to its metal alloys, compatibility with HDG and reduced white rusting.
Alzin has been designed for use in the building and construction industries and is recommended by CMI for environmental categories 1,2 & 3 of ISO 9223. If category 4 corrosion resistance is required, the firm can apply a different coating system to meet customer requirements.

Go to www.demm.co.nz/enquiry quote: DW130507 or contact  sales@cmifasteners.co.nz