Choosing the Correct Powder Coating
This guide assists you to select the appropriate powder coating for the design location. To assist you please refer to the New Zealand Corrosion Zone map NZ3604. (Link)
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.
|
NZS 3604 Corrosion Zone |
Zone Description |
Powder Type – Minimum |
Powder Type - Recommended |
|
Sea Spray |
<10 metres from the shore line |
Super Durable Fluoropolymer Coating |
Super Durable Fluoropolymer Coating |
|
Sea Spray |
<100 metres from the shore line |
High Durability Powder Coating |
High Durability Powder Coating |
|
Zone 1 |
Coastal areas that are not deemed “sea spray” but are still a marine environment. |
Extra Durable Powder Coating |
High Durability Powder Coating |
|
Zone 1 |
Coastal areas that are not spray zone and benign |
Extra Durable Powder Coating |
Extra Durable Powder Coating |
|
Zone 2 |
Inland coastal areas that would normally lie between coastal and hill country |
Extra Durable Powder Coating |
Extra Durable Powder Coating |
|
Zone 3 |
Inland New Zealand, typically hill country where rainfall is plentiful |
Extra Durable Powder Coating |
Extra Durable Powder Coating |
|
Zone 4 |
Geothermal areas. Other areas to be included in this zone would be swimming pools, polluted and high corrosion risk areas. |
High Durability Powder Coating |
Super Durable Powder Coating |
Definitions:
|
Extra Durable Powder Coating |
High Durability Powder Coating |
Super Durable Fluoropolymer Coating |
|
(Extra Durable) Conforms to AAMA2603 |
(High Duty) Conforms to AAMA2604 |
(Super Duty) Conforms to AAMA2605 |