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Zinklad Coating Services

Dynaburr offers chemical passivation finishing to our customers in the automotive industry using the ZinKlad 250 M coating process. We can coat steel, stainless steel, spring steel, brass, and powered metal with thickness up to 5 mils. Our lined octagon barrel tanks have a capacity up to 20 ft3 and process parts up to 1’ in length. The ZinKlad process provides superior corrosion protection, passing salt spray tests of 120 hours for white rust and 240 hours for red rust, while eliminating the risk of hydrogen embrittlement. Our coating process meets Ford WSS M21p17-B4 (S437m) and GM-3044 (8K240/120X) specifications.

Prior to coating, parts are thoroughly prepared using chemical cleaning and copper flash processes. Post-plate operations include water polishing, conversion coatings, trivalent coatings, and wax or oil application. ZinKlad can be used on hood latch springs, seat belt anchors, door strikers, and a variety of other safety critical parts. We offer electromagnetic, salt spray, and adhesion testing, and are an ISO 9001:2008 certified company.

For more information about our ZinKlad 250 M coating capability, please see the table below, or contact us directly.

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Zinklad Coating Capabilities:


ZinKlad 250M Coating Process




Zinc Plate
Trivalent Passivate
Hexavalent Chromium-Free


Stainless Steel
Spring Steel
Powdered Metal


Lined Octagon Barrel Tanks

Pre-Plate Operations

Chemical Cleaning
Copper Flash

Plating Thickness

Up to 5 mil

Part Length

Up to 1 ft

Part Weight

Up to 1 lb


2 to 20 ft³

Post-Plate Operations

Water Polish
Conversion Coatings
Trivalent Coatings


Ford WSS M21p17-B4 (S437m)
GM-3044 (8K240/120X)

Corrosion Performance

White Rust: 120 hours
Red Rust: 240 hours

Testing Ability

Electronic Magnetic
Salt Spray

Additional Services

Pick-up and Deliver y (Local)
Packaging and Sorting
Drop Shipments

Production Volume

Small to Large Runs

Typical Lead Times Available

3 to 5 days
Same Day Available

Additional Information

Industry Focus


Intended Applications

Hood Latch Springs
Seat Belt Anchor Bolts
Door Strikers
Safety and Critical Parts
Double Ended Collar Studs
Head Lamp Adjustment

Industry Standards

ISO 9001:2008 Certified
Chicago Metal Finishers Institute (CMFI)
National Association for Surface Finishing (NASF)
American Society for Testing and Materials (ASTM)
Department of Transportation (DOT)