Atotech introduces new passivate for electroplating market
Atotech’s Tridur ZnNi H5.2-plated parts can be combined with aluminum alloys and used in the automotive industry to minimize contact corrosion.
Atotech (Berlin, Germany) recently introduced Tridur ZnNi H5.2 to the electroplating market; a black passivate, which is applicable to alkaline and to acidic zinc-nickel surfaces. Tridur ZnNi H5.2-plated parts can be combined with aluminum alloys and used in the automotive industry to minimize contact corrosion.
Like Atotech’s other passivates, the new passivate exceeds the requirements of DIN EN ISO 19598. The application of Tridur ZnNi H5.2 is said to result in an extended lifetime compared to the market standard. Tridur ZnNi H5.2 forms a long-lasting, homogeneously spread, deep black color to surfaces at 12-13% incorporation rates of nickel (well within OEM standards), ensuring very high corrosion protection against red rust.
Combined with Atotech’s sealers, the post-dip Tridur Finish 300 or Atotech’s zinc flake topcoats, Tridur ZnNi H5.2 offers high levels of corrosion protection against white and red corrosion (240 / 720 h) according to DIN EN ISO 9227.
Atotech says Tridur ZnNi H5.2 complies with the REACH regulations for beyond the year 2021, because it is both, cobalt-free and fluoride-free.
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