LASTING PROTECTION.
EXCEPTIONAL DURABILITY.
Type II and Type III anodising in Henderson, Auckland since 2009. We handle 12µm standard coatings and 60µm hard coatings for marine fittings, defence equipment, aerospace components, and medical instruments across New Zealand.
Hard Anodising Services in Auckland, New Zealand
ABOUT US
We've been running Type II and Type III hard anodising out of Henderson, Auckland since 2009. Our tanks take everything from small machined fittings to structural extrusions up to 6 metres long. Most of our work is for Auckland fabricators doing architectural jobs, marine boatbuilders needing corrosion resistance, and manufacturers making parts for defence or medical equipment.
Type III (hard anodise) is what we're known for. It's a 60µm coating that can handle hard wear and Auckland's coastal environment. We also run standard Type II at 12µm for architectural work and a 25µm marine-grade process for boat fittings that see saltwater daily.
Our typically turn around time is 5-10 working days, depending on coating type and what's already in the tanks. Tight on time? We can prioritise more urgent work to meet your deadlines. Share your drawings or measurements and we'll quote it properly.
HOW IT WORKS
Anodising converts the aluminium surface into aluminium oxide through an electrochemical bath. Your part becomes the anode in a sulphuric acid solution, and we pass an electrical current through it. The surface oxidises in a controlled way, growing a coating that's half into the base metal, half building up on top.
Type III (hard anodise) runs cold (around 0-5°C) with higher voltage than standard anodising. That's what gives you the thicker, harder coating. We continuously monitor tank temperature, acid concentration, current density, and time throughout the process. Get any of those wrong and you'll either get a soft coating, uneven thickness, or surface burning.
Durability
Anodised products have an extremely long-life span and offer significant economic advantages through maintenance and operating savings.
Adhesion
Anodising is a reacted finish that is integrated and penetrated with the underlying aluminium for total bonding and unmatched adhesion.
Environment
Wastewaters are filtered and neutralized. The anodic layer remains 100% aluminium, so full recyclability is not compromised.
Niche Products
For components that require extra attention to detail, we have the knowledge and commitment to deliver the best solution possible.
Commitment
Committed to providing the highest quality finishes to meet client expectations as quickly and efficiently as possible.
Process Control
Precise combination of temperature, chemical concentration, proprietary catalysts and current density via sophisticated monitoring.
FIELDS OF APPLICATION
Serving an expanding variety of sectors with fast, reliable, and high-quality anodising services.
TYPE III HARD ANODISING
This is for parts that are subject to heavy use and extreme operational and weather conditions. The 60µm hard-anodic layer protects against extreme wear and corrosion. Hard anodising also provides excellent electrical insulation and temperature resistance. Full specs on the services page.
- ■ Superior corrosion protection
- ■ Extreme wear resistance
- ■ Excellent electrical insulator
- ■ High temperature resistance
FREQUENTLY ASKED QUESTIONS
Depends on part size, quantity, and coating spec. Type III costs more than Type II because of longer processing time and the thicker coating. Small batch jobs cost more per piece than production runs. Phone us on 09 836 8889 or email us for a quote.
Yes. Our tanks in Henderson handle substantial parts for marine, aerospace, and industrial jobs. Email us your dimensions and we'll confirm whether it fits.