Clear Trivalent Passivate

Great Lakes Metal Finishing, Inc offers many clear zinc plating options, all of which are trivalent and are RoHS compliant. The main distinguishing factor between these electroplating options is the difference in corrosion protection. Not including any available topcoats or sealers, our clear zinc coatings can give a minimum salt spray protection of 12, 96, or 250 hours to white corrosion, depending on the trivalent passivate used.

Zinc electroplating is our specialty, and we have six automated zinc plating lines. Half of these lines are rack plating lines, all of which contain at least one clear zinc option. The other three are barrel zinc plating, again, all containing at least one clear zinc option. By electroplating with automated lines, we remove operator error and deliver the most consistent results, from your first part in line to the last.

Topcoats, Sealers, and Torque ‘N’ Tension coatings can be applied to all clear zinc plating options. See our other processes page for information on these coatings.

How do we meet customer’s expectations?

Great Lakes Metal Finishing, Inc strives to give our customers exactly what their parts need and even exceed their expectations. The majority of the work performed at GLMF is plated to a customer’s individual zinc or zinc nickel plating specifications. No matter the plating thickness, bake cycle, chromate, or salt spray requirement, GLMF will deliver exactly what is required to meet the specification callout. If you do not know what is needed for your part, we will collaborate with you to find the appropriate zinc nickel or zinc electroplating that is necessary.

How do we ensure plating specifications are met?

GLMF performs on-site daily testing of our cleaners, acids, plating tanks, passivates, and chromates to ensure they are all in compliance with ideal operating parameters. To ensure your parts are getting the proper plating deposit for every job, our operators complete online thickness checks using one of our x-ray machines. In addition to online checks, all parts pass through our quality department for a final inspection of appearance and thickness. This final step helps to ensure proper plating specifications were met.

Find Your Industry:

Our automated rack and barrel line capabilities, combined with our proprietary chemistry, make our clear trivalent passivate optimal for industries including, but not limited to:

• Industrial
• Marine
• Metal Fabrication
• Outdoor Equipment

How long does it take to turnaround parts?

Generally, Great Lakes Metal Finishing can turn your parts around in 48–72 hours. If a bake or multiple bakes are required, we will need approximately 72–96 hours to have your parts ready.