Iridite NCP

Why choose Iridite NCP?

  • Corrosion resistant
  • Good paint base
  • Electrically conductive
  • Cost effective

Specifications that we offer:

Similar treatments:

Why choose Metal Finishings Ltd?

  • Fast turnaround - as short as 24 hours
  • High quality
  • ISO 9001 and AS 9100 certified
  • Nationwide service with our trusted courier
  • No-obligation quotations
  • Free certificates of conformity

Iridite NCP is a non-chromium passivate for aluminium. It has been used for a number of years by many throughout the industry. Iridite NCP is designed to be a replacement for traditional chromate conversion coatings.

Our testing has indicated that Iridite NCP is not suitable for all commonly used materials, specifications and use-cases. We also offer Surtec 650V, which may be more suitable in some cases. Please contact us for advice about which will be most suited to your application.


Specifications Offered

We can work to many other specifications, but the above are our most popular. Please contact us with your requirements.

RoHS and REACH Compliance

Iridite NCP is RoHS compliant. Unlike some other treatments on the market, Iridite NCP contains no chromium at all. Iridite NCP does not contain SVHCs above the threshold and will not be restricted by REACh.



Working days

Next Day




More information about our turnaround times. Additional charges will apply to express services.

Parts treated with Iridite NCP, an almost colourless coating.
Parts treated with Iridite NCP, an almost colourless coating.