skip to main content


NEW! Apticote 400D - a unique, graded version of Electroless Nickel giving 1000 hours salt spray - guaranteed. Read down for details

Apticote Electroless Nickel

electroless nickel plating

The Apticote 400 electroless nickel process provides a unique combination of high quality, rapid throughput and turn-round with superb performance. There are a wide variety of coating options, one of which will satisfy your particular requirements for wear resistance, corrosion protection or aesthetic appearance.

The Poeton strength lies in our fully automated lines, with a unique control system that accurately maintains the bath chemistry and provides a constant deposition rate, as well as in our exceptional operator skills and experience. Your component will be plated exactly how you want it, where you want it and, above all, consistently.


Apticote 400 electroless nickel coatings can be applied in very thin deposits (minimum 5µ) with uniformity and dimensional precision on most metallic substrates, including mild steel, stainless steel, cast iron, aluminium and titanium. This allows the designer to choose his substrate and mating parts on the basis of a need for strength, light-weight or corrosion resistance. Any problems of wear or corrosion that might occur with such materials can be overcome with one of the Apticote 400 options.

A400 Plant *

Why is Apticote 400 the best electroless nickel?

  • Fully automated lines
  • PC controlled - fully programmable
  • Accurately maintained bath chemistry and
    make-up, controlled by a dialysis unit that continuously monitors the electrolyte composition
  • Professional laboratory backup
  • Highly trained and skilled operators
  • Comprehensive quality inspection
The APTICOTE 400 Electroless Nickel Options
APTICOTE 400N For maximum toughness and general wear and corrosion protection
APTICOTE 400N, heat-treated For optimum wear resistance
APTICOTE 400P For extended corrosion protection
Apticote 400D (NEW - with a graded structure) For maximum corrosion protection and good wear resisance


  • High wear resistance
  • Can be hardened to 1,000Hv
  • Excellent corrosion protection
  • Superb accuracy of deposition
  • Thickness range 5 to 50µ
  • Completely uniform coverage
  • No post-machining
  • Plates on most metals
  • Excellent anti-fretting



  • Valves
  • Pumps
  • Splines
  • Gears
  • Hydraulic pistons
  • Moulds
  • Cutting knives
  • Housings
  • Mirrors and reflectors
  • Fasteners
Properties and Benefits

Corrosion protection

Corrosion protection by electroless nickel relies on the integrity of the coating; it is not a sacrificial layer and provides only a diffusion barrier. Hence, Poeton's high level of plating skill and dialysis controlled process chemistry ensures deposits that have minimum defects and zero residual tensile stresses. An example of the relative corrosion protection that can be provided is shown in the graph, showing the exceptional performance of the new Apticote 400D coating, with its special graded structure. It is specifically recommended for applications in the marine industry, where chloride corrosion normally results in early failures.

apticote 400d unique graded structure

Precision hard chrome plating on JAS 39 flight actuators

salt spray test

(Note, we now recommend Apticote 400D in preference to the traditional high phosphorous electroless nickel variant. Also, please consult our Apticote 460 page to view electroless nickel products that provide extended corrosion protection with non-stick and low friction).


Low stress abrasive wear factorsLow wear and high hardness

In abrasive situations Apticote 400 Electroless Nickel can reduce the wear on substrates like stainless steel by over 80%.

In adhesive, metal-to-metal situations, Apticote 400 Electroless Nickel provides even greater wear protection. The hardness of the Apticote 400 nickel can be increased to 1,000Hv by heat-treatment at 400DegC.

And because our dialysis control system on the electrolyte chemistry ensures the best coating quality, with high hardness without residual coating tensile stresses to cause brittleness, Apticote 400 out-performs competitors' electroless nickel by a significant margin.


Apticote 400 electroless nickel provides predictable uniform coverage in the range 5 to 50µ, depending on the application. It is applied to your finished product without any need for post-machining. It can even coat internal surfaces, thread forms and bores.

Substrate materials

Using our extensive R&D capability, Poeton have developed the optimum pre-treatment sequences for each substrate type, so that Apticote 400 electroless nickel can be applied with confidence to materials like titanium and aluminium, as well as the more usual range of engineering and stainless steels.

Specifically, Apticote 400 can bring acceptable tribology to a lightweight material, a vital property for aerospace and automotive applications.

more info about electroless nickel

Printer Friendly Version

Click here to download our Apticote 400 printer friendly version for your retention (PDF=700KB).

Click here to download a printer friendly version of our new Apticote 400D promotional flyer for your retention (PDF=2000KB).

For details of all our processing capabilities, size and capacity, please follow this link.