Tuesday, 29 May 2012
By Alan Gardner, global marketing manager, MacDermid Industrial SolutionsWhen coating performance is considered, hours to white or red rust are the normal criteria. However with high tensile fasteners, threaded or unthreaded, being free of hydrogen embrittlement is an equally important factor. For this reason components such as rivets and safety critical fasteners are zinc coated using a mechanically applied process rather than traditional electroplate. This process also offers advantages in bulk application against organic dip spin that even the smallest fastener can be treated without head/recess fill or parts sticking together.
Mechanical plating
In the mechanical plating process the zinc is (…)
