Trivalent Yellow Chromate

Trivalent yellow chromate is a thick-film coating process for zinc that produces a slightly iridescent, multicolour finish that is unique among high corrosion trivalent chromate processes. Trivalent yellow chromate exhibits self-healing properties similar to hexavalent conversion coatings.

SpectraMATE 25 A THICK-FILM TRIVALENT CONVERSION COATING FOR ZINC

Description

SpectraMATE 25 is a high performance, thick-film trivalent conversion coating for electroplated zinc.

SpectraMATE 25 produces a slightly iridescent, multicolour finish which is unique among high-corrosion trivalent chromate processes

SpectraMATE 25 provides a finish that consistently exceeds 250 hours of neutral salt spray to corrosion products without top coats, when applied properly.

SpectraMATE 25 is an easy-to-use, one-part system that does not require multiple starter, adjuster and replenisher-type additives.

SpectraMATE 25 operates at a wider, and more user-friendly pH range (pH = 1.4 to 3.4) than conventional trivalent chromates.

SpectraMATE 25 operates at low-to-ambient temperatures, thus eliminating the added cost and inconvenience of heating as with conventional thick-film trivalent technologies.

SpectraMATE 25 is chelator-free and does not rely on chelate ligand technology. It exhibits “true self-healing” properties similar to that of hexavalent conversion coatings.

SpectraMATE 25 provides over 500 hours to corrosion when top coated with Zinc-Chro- SHIELD® or Zinc-Chro-PELLENTTM.

SpectraMATE 25 is ideal for both and rack and barrel installations, utilising cyanide, alkaline cyanide-free or acid-chloride zinc plating electrolytes.