Face Seals and Annular Coatings
Above:Greystone executives, Everett Fernald (at left); David Lippy (center), and Steve Durkin, Sales Engineer (right) discuss Greystone's extensive offerings and expertise.
Above:Greystone executives, Everett Fernald (at left); David Lippy (center), and Steve Durkin, Sales Engineer (right) discuss Greystone's extensive offerings and expertise.
Greystone Solenoid Plating
Above:Greystone executives, Everett Fernald (at left); John Maconi (center), and David Lippy (right) discuss Greystone's experience and understanding of solenoid plating. Further, learn about specific processes that Greystone uses to plate solenoids with few or no nodules.
Above:Greystone executives, Everett Fernald (at left); John Maconi (center), and David Lippy (right) discuss Greystone's experience and understanding of solenoid plating. Further, learn about specific processes that Greystone uses to plate solenoids with few or no nodules.
Medical Chrome Plating: Autoclaving
Above: Greystone executive, David Lippy (right) discusses Greystone's experience and innovation in Medical Chrome Autoclaving, with Rawl Rutter (left), Business Manager for Greystone's plating subsidiary Induplate.
Above: Greystone executive, David Lippy (right) discusses Greystone's experience and innovation in Medical Chrome Autoclaving, with Rawl Rutter (left), Business Manager for Greystone's plating subsidiary Induplate.
Selective Zinc Plating
Above: Greystone executive, David Lippy (right) discusses Greystone's abilities in Selective Zinc Plating, with Rawl Rutter (left), Business Manager for Greystone's plating subsidiary Induplate.
Above: Greystone executive, David Lippy (right) discusses Greystone's abilities in Selective Zinc Plating, with Rawl Rutter (left), Business Manager for Greystone's plating subsidiary Induplate.
Case Studies
Some of our Clients we've helped:
Above: Greystone, Inc executives interviewed about the company and asked how, for over 80 years and on an international basis, has Greystone has continued to meet client plating and machining challenges in innovative ways in such industries as aerospace, automotive, medical, and industrial equipment. Interviewed: John Maconi, CEO David Lippy, Owner/President Everett Fernald, Owner/President
About Greystone
Above: Greystone, Inc executives interviewed about the company and asked how, for over 80 years and on an international basis, has Greystone has continued to meet client plating and machining challenges in innovative ways in such industries as aerospace, automotive, medical, and industrial equipment. Interviewed: John Maconi, CEO David Lippy, Owner/President Everett Fernald, Owner/President
Trivalent Chromate Coatings
Overview:A major automotive supplier had to convert its hexavalent olive drab coating to a trivalent black chromate for its zinc-alloy plating. Greystone offered zinc-alloy plating with trivalent black chromate that provided the necessary salt-spray performance.
Challenge:
Typically, trivalent chromates have had difficulty meeting corrosion protection requirements. The new "ELV" directive implemented by the European community on automakers has severely tested electroplaters and chemical suppliers in the elimination of hexavalent chromates in the zinc passivation process. Naturally occurring 'contaminants' within the plating process drag-out from one tank to the other, and as these 'contaminant' levels rise within the chromate bath, the corrosion protection ability of the chemistry falters.
Approach:
Greystone has been using trivalent chromates for over 5 years working very closely as a Beta-site for a leading chemical supplier. These years of experience has proven very valuable to understanding the complexities to trivalent chromate applications, process parameters and overall performance with respect to corrosion protection and periodic salt-spray testing. Through statistical process control, upper and lower control limits were established on various process chemistry components and were verified with each production run. With consistent & regularly-monitored laboratory chemical analysis, Greystone is able to ensure optimum trivalent chromate application & performance with each production run.
Result:
Greystone's experience using trivalent chromates provided a solid and predictable transition to hex-free chromate plating from hexavalent chemistry. The customer was able to confidently provide samples with superior corrosion to their end customer to ensure a smooth transition from hexavalent to trivalent chromate chemistry.
