Case Studies

The trivalent clear or blue bright products have been on the market and performing well for over 10 years now and the market has forced some of the yellow zinc plating to shift to the clear or blue chromates. Because of the history of the hexavalent yellow chromate and the performance and the appearance of […]

Metal Finishing Issue “Summertime is Corrosion Time” This is great news for air conditioning salesmen but metal finishers and their customers need to bring their “A” game when tackling corrosion resistance at this time of year. Care needs to be taken in the proper rust prevention and packaging necessary to get parts into our capable

Salt Spray Test Background Five hundred pieces of customer hardware were barrel plated and chromated in Saporito Finishings high-corrosion resistant chromate. Two sample sets were submitted for zinc trivalent salt spray testing based on ASTM B117-95, 5% neutral Salt Spray Test. Following barrel plating on all 500 parts, 50 pieces were subjected to a subsequent

Trivalent high corrosion resistant chromate by Saporito is a clear/blue Trivalent chromate offering resistance for up to 150 hours to white rust (corrosion) and 264 hours to red rust (chromate) when tested to ASTM B117 neutral salt spray testing. The new trivalent chromate produces an attractive, bright blue trivalent chromate to meet automotive and other

Nontoxic, High-Corrosion Resistant Trivalent Chrome Conversion Coating Helps Eliminate Hexavalent Chrome Use Saporito Finishing Company now offers a high-corrosion trivalent chrome conversion coating for aluminum, magnesium and zinc die castings that will help eliminate the need for toxic hexavalent chrome use. The conversion coating is a clear blue finish similar to standard clear chromate and

Hard anodizing aluminum makes aluminum retain the basic advantages of aluminum while providing greatly improved wear, heat resistance, and corrosion resistance. The number of applications for hard anodizing continues to grow in the appliance, aerospace, food processing, military, and fire fighting equipment markets. There are also hard anodized aluminum applications for cylinders, hydraulic gears, pistons