SurfaceTechnology GERMANY, 21 - 23 Juni 2022

EcoTri® NC

A cobalt-free passivate for zinc nickel surfaces

Logo Atotech Deutschland


Atotech Deutschland

Exhibitor details
Exhibitor details
Logo EcoTri® NC

Product description

EcoTri® NC is Atotech's latest contribution to its ever increasing product portfolio of environmentally friendlier corrosion resistant coatings. The cobalt-free passivate is designed for zinc nickel applications and offers a clear to iridescent appearance.
Cobalt is widely used in certain specialized passivate formulations to increase corrosion protection and to enhance heat resistance. Nonetheless, since cobalt salts have been listed among the «Substances of Very High Concern» (SVHC, REACH) and the permitted level for cobalt in wastewater is decreasing in many regions, the electroplating industry is increasingly interested in cobalt-free processes. The chrome(III)-based EcoTri® NC provides the same corrosion protection level as cobalt-containing passivates.
EcoTri® NC is extraordinarily adhesive to numerous organic and inorganic post-treatments, which makes it also highly suitable for sealers. In combination with Sealer 300 W EcoTri® NC offers remarkably high protection against red rust (over 1000 h). The iridescent layers are heat resistant for up to 12 hours (up to 210°C). EcoTri® NC is the first passivate without cobalt on the market showing improved corrosion performance after hydrogen embrittlement baking.
EcoTri® NC is suitable for Tricotect®, Atotech's regeneration system that allows for the continuous and selective removal of iron and zinc build-ups from passivate solutions, while ensuring constant high plating quality and preventing passivate films from hazing and discoloration.

Hall 1, Stand D27, (08)

Welt der Oberfläche

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