Rzeszow, Poland

Poeton Polska SP. Z O.O.

Jasionka 954

36-002 Jasionka PPN-T

Aeropolis Podkarpackie Science & Technology Park

+48 17 773 69 01

TIN: PL 813 373 50 41

Gloucester, UK

Poeton Industries Ltd.
Eastern Avenue
Gloucester, UK


+44 (0) 1452 300 500

Cardiff, UK

Poeton Industries Ltd.
Penarth Road
Cardiff, UK
CF11 8UL

+44 (0) 2920 388 182

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Apticote 900 is an electrolytic process that can deposit protective cadmium coatings on to a variety of base materials to produce a degree of corrosion protection unmatched by other sacrificial coating systems. It out-performs coatings based on zinc or aluminium in aggressive corrosion situations, including atmospheric, saline and alkaline conditions.


Cadmium provides corrosion protection by its unique ‘sacrificial’ action. When applied as a coating on steels or other structural metals, it corrodes preferentially and the substrate remains undamaged, even if the coating is scratched. Normally, the cadmium coating is applied with a thickness between 5 and 25μm and its own corrosion rate is less than one fiftieth of that of steel.


Cadmium plating can be used in aeronautical, aerospace, and military & defence applications. Cadmium can also be used on safety devices in road vehicles, agricultural vehicles, rolling stock & vessels. The use of cadmium on electrical contacts in any sector of use is also not restricted.


Primary features & benefits include:

  • Superb corrosion protection (>2,000 hours salt spray)

  • Low friction (0.15 vs steel)

  • Ductile, self-healing

  • Small volume growth when oxidising, lower than zinc or aluminium coatings

  • No final grinding - smooth, aesthetically pleasing surface as plated

  • Can be chromate passivated for enhanced corrosion protection

  • Zero effluent processing

  • Prolonged corrosion protection to key components

  • Prevents galvanic corrosion between steel fasteners and aluminium

  • Reduces tightening torque of fasteners and allows repeat dismantling

  • Prevents jamming of fasteners or delicate mechanisms

  • Accommodates manufacturing tolerances without finishing

  • Helps guarantee safety of highly stressed parts


  After electroplating and heat-treatment (if required), a chromate conversion coating is usually applied, giving the coating its well known iridescent green/brown appearance. Such a treatment can double the corrosion resistance. A thin conversion coating can maintain a bright as-plated finish and does not appreciably affect the electrical conductivity of the surface, nor its solderability. A clear lacquer coating can provide additional protection.