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