Electronic / Electrics Fastener Coatings

To meet the requirements of the electronic / electrics industry Atotech provides the yellowish iridescent passivate Tridur® Zn Y3 offering excellent corrosion protection. Tridur® Zn Y3 is Cr(VI)-free according to the WEEE and RoHS directive and the color can be adjusted by varying parameters or intensified by using Rodip® Yellow Dye 702 or Unifix® Dye. Both dyes are based on food coloring and therefore are completely non hazardous and environmentally sound.

Process sequence Tridur® Zn Y3 as stand alone yellow passivate:

Process Sequence Tridur® Zn Y3 intensified with dye:

Process Sequence Tridur® Zn Y3 with yellow dye in rinse: