Corrosion Passivator

Cold Alloy CA

nC Corrosion Passivator – Cold Alloy is a 2-component metal treatment that passivates both new and blasted metal. It stops and prevents the corrosion process and prevents galvanic corrosion.

It is applied by roller, brush, spray or ESS and adheres chemically via a sol-gel process with the metal, forming so-called electron pairs there. nC Corrosion Passivator Cold Alloy is resistant to welding and chemicals and remains active for up to 25 years.

Important product features

  • Cancels electrical current of different
    metals (galvanic corrosion).
  • Resistant to welding and fire.
  • Chemical Resistant.

Technical Information

Suitable for

New or blasted metal (Sa2.5).
Extremely hot surfaces.
Heavily chemically loaded surfaces.


Substrate must be free of grease, adhesive marks, loose paint and/or loose rust.
Ensure that the surface is not hotter than 60 °C.

Application method

Roller, brush, sprayer or ESS.


Low consumption of 60m2 to 80m2 per kilo.

Drying time

Hand dry after 45 minutes.
Paintable after 180 minutes.




Lifetime up to 25 years.


Storage between 5°C and 25°C.
Store for up to 12 months in tightly sealed containers.


Adhesion EN ISO 4624: 12 MPa.
Salt spray test EN ISO 9227: No rust.
VDA 621-415 Cyclic corrosion test: No defects after 5 cycles of 24 hours each.


Product Data Sheet (PDS)

Brochure Corrosion Passivator

nC Corrosion Passivator Brochure_English

Withstands high temperatures

Due to special composition, nC Cold Alloy can withstand very high temperatures, up to 1300 ⁰C without losing function.

Replaces galvanisation or galvanizing process

Without the need for environmentally damaging and costly processes, nC Cold Alloy achieves the same result.

Highly wear resistant

nC Cold Alloy is designed for applications in the harshest conditions and is used effectively in the most challenging projects.


Discover how our nC Corrosion Passivator products offer a solution to our customers.

Do not hesitate to call us.

Contact us and find out what we can do for you.