UltraPass BlackUltrapass Black can be used successfully on components which have been blue passivated using Ultrapass Tri-Blue. This is very useful where the Ultrapass Black solution is used offline and where large volumes of components are being processed.
The Ultrapass Black process produces black conversion coatings on electroplated zinc and zinc-based diecasting’s. It provides excellent corrosion resistance in excess of 100 hours salt spray to white corrosion when correctly applied.
Available in the following sizes.