A guide to
New Zealand Corrosion Zones
This guide assists
you to select the appropriate powdercoating for the design location.
There are few
places in New Zealand that are not affected by sea laden winds that traverse our
narrow landmass. All aspects of building design are thus influenced, and good
building design necessitates choosing appropriate products.
The maps indicate
the major corrosion zones.
|
NZS3604 Corrosion Zone |
Zone Description |
Powder Type - minimum |
Powder Type - Recommended |
|
Sea Spray Extreme
|
<10 metres from the shore line |
Super Durable Fluoropolymer
Coating |
Super Durable Fluoropolymer
Coating |
| Sea Spray |
<100 metres from the shore line
|
High Durability Powdercoating |
High Durability Powdercoating |
| Zone 1 |
Coastal area that are not deemed "sea spray" but are still a
marine environment
|
Extra Durable Powdercoating |
High Durability Powdercoating |
|
Zone 1
|
Coastal areas that are not spray zone and
benign |
Extra Durable Powdercoating |
Extra Durable Powdercoating |
|
Zone 2
|
Inland coastal areas that would normally
lie between Costal and Hill country |
Extra Durable Powdercoating |
Extra Durable Powdercoating |
|
Zone 3
|
Inland New Zealand, typically Hill country
where rainfall is plentiful |
Extra Durable Powdercoating |
Extra Durable Powdercoating |
|
Zone 4
|
Geothermal areas. Other areas to be
included in this zone would be swimming pools, polluted and high corrosion
risk areas. |
High Durability Powdercoating |
Super Durable Fluoropolymer
Coating |
