Interpon Steelplex™ Warranty System

Our Steelplex™ warranty systems offer up to 15 years for steel and non-architectural aluminium applications for corrosion protection, color retention and film integrity.


Warranty name Steelplex™ Ruby Steelplex™ Diamond 5 Steelplex™ Diamond 10
Warranty logo   Interpon Steelplex Ruby Warranty Logo Interpon Steelplex Diamond 5 Warranty Logo   Interpon Steelplex Diamond 10 Warranty Logo
Suitable substrates Mild steel Mild steel Mild steel
Film integrity warranty* 10 years Up to 15 years 15 years
Color retention warranty* 10 years Up to 15 years 15 years
Corrosion protection warranty* Up to 3 years Up to 5 years Up to 10 years
Preparation standards AS4506
Top coats Interpon D1000 Interpon D1000 or Interpon D2525 Interpon D2525
Primers Interpon MetaPrep™ Primer Interpon PZ 560 or Interpon PZ 790 1st coat: Interpon PZ 790

2nd coat: Interpon MetaPrep™ Primer

Application system 2-coat system 2-coat system 3-coat system
Environmental conditions Greater than 500 metres from coastal or aggressive atmospheres Greater than 500 metres from coastal or aggressive atmospheres Greater than 20 metres from coastal or aggressive atmospheres
Project suitability Domestic residential


Domestic residential


Domestic residential


Pre-treatment Abrasive blast and multi-stage phosphate Abrasive blast Abrasive blast
*Warranty applies only when coated by an Interpon Approved Applicator. Terms and conditions apply. 



 Interpon Specification Guide

 Interpon Steelplex™ Brochure



What standards do Steelplex™ warranties meet?

Interpon products required for Steelplex™ warranties meet the American Architectural Manufacturers Association (AAMA) and Standards Australia.

AAMA Standards are the globally recognised specification, performance requirement and test procedure for organic coatings on aluminium extrusions and panels as set out by the American Architectural Manufacturers Association. The standards assist architects, owners, and contractors to specify coatings for aluminium applications that will provide and maintain a minimum level of performance.

AS3715 for ‘Metal Finishing – Thermoset powder coating for architectural applications of aluminium and aluminium alloys’. It sets out the Australian standards required for pre-treatment, application and performance of powder coatings on aluminium substrates.

What is the Building Code of Australia (BCA)?
The Building Code of Australia (BCA) provides a nationally accepted and uniform set of technical requirements for all areas of a building, from design to construction. Developed by the Australian Building Codes Board (ABCB) on behalf of the Commonwealth, State and Territory Governments, the BCA is referred to as the building regulation in all States and Territories – 2010 – these are the regulatory Australian guidelines which defines construction requirements for residential and commercial projects.

How are the warranties issued?

Only Interpon Approved Applicators are eligible to offer Steelplex™ Ruby, Diamond 5 and Diamond 10 warranties.

A project certificate outlining the project and product details will be issued to the Approved Applicator upon completion of work.

What is the difference between an Interpon Approved Applicator and non-Approved Applicator?

Our network of approved applicators is regularly assessed against comprehensive criteria and rigorous application guidelines. Applicators are quality controlled to best in class standards to ensure their pre-treatment and application procedures meet these strict guidelines.

These standards are designed to ensure the application process is adhered to in accordance with the requirements of both AkzoNobel and global industry standards, ensuring the highest level of customer satisfaction possible.

What happens if I do not use an Interpon Approved Applicator?

Unfortunately, the coated components will not be eligible for warranty. If you have any concerns, please contact us and we will work with you to find a resolution.

How do I become an Interpon Approved Applicator?

You can apply to become an Interpon Approved Applicator. Once we receive your request, we will contact you to discuss the next steps.