Cadmium Substitution - garteur
Cadmium Substitution - garteur
Cadmium Substitution - garteur
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GARTEUR LIMITED<br />
6 Coating costs<br />
Attempts were made to compare the cost of the alternative coatings being evaluated with<br />
those associated with electroplated cadmium. The coating suppliers identified in table A1<br />
(Annex A) were asked to provide cost estimates for coating 1000 sheets 100 x 150mm.<br />
This information was used to calculate the cost in dollars to coat 1 square metre.<br />
An overview of the relative costs for commercially available coating processes is given<br />
below in table 19. Comparisons are made in terms of the cost in US $ per square<br />
decimetre. With the exceptions of the IVD aluminium and SermeTel CR984/985 coatings,<br />
the replacements studied are generally less costly than cadmium plating.<br />
Coating Cost $/dm 2 Supplier<br />
ED cadmium 1.59 SW Metal Finishing<br />
ED Zinc-nickel 1.59 SW Metal Finishing<br />
ED Zinc-cobalt<br />
SAAB<br />
ED Aluminium 1.13 Alcotech<br />
IVD Aluminium 1.94 Ion Deposition<br />
Delta-tone (rack) 1.25 Ewald Dörken AG<br />
Delta-tone (barrel) 0.25 - 0.41 Ewald Dörken AG<br />
SermeTel CR984/985 2.01 Sermatech<br />
Zinc plating ~0.12 Automotive industry<br />
Table 19 ; Relative costs for commercially available coatings<br />
For comparison purposes the cost of electroplated zinc has been included. This is used<br />
in many sectors including the automotive industry. The relative cost is considerably lower<br />
than for the two zinc alloy coatings studied, which are finding increased applications on<br />
car and vehicle bodies.<br />
GARTEUR SM/AG17 TP128 Page 17
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