Long Term Corrosion Protection
The Sherardized coating provides long term corrosion protection due to the continuous and unbroken sacrificial zinc alloy layer
Sherardizing is a proven anti-corrosion Zinc coating which, when correctly specified and applied, gives a resilient and uniform defence against the corrosion of the base metal, making Sherardizing an ideal coating for small components such washers, bolts, nuts, springs, castings and forgings in addition to irregularly shaped and recessed components with close dimensional tolerances. Normal process thickness is in the range of 15-80 µm .
Due to the Iron content of a Sherardized coating, it is the hardest and most wear resistant of the zinc finishes and is able to withstand mechanical damage without loss of performance. The alloyed adhesion characteristics are such that the coating will not lift or peel and can only be removed by chemical (acid) or mechanical (shot blasting) means.
The true cost of protecting components from corrosion considers both the initial cost of protection, post treatments and the lifetime maintenance cost. Sherardizing provides a highly effective long term coating which is competitive on an initial cost basis.
Controlled Coating Thickness
Precise process control ensures both intra and inter batch uniformity.