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      Whether your project requires a finish with superior functionality, improved contact resistance, solderability, or another property, Twickenham Plating Group has a wide range of finishes to choose from.
      
      For more complex jobs our technical experts can provide advice to help you achieve the perfect finish.
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      From our unique selective gold plating processes to our full range of Reel to Reel, Barrel, Vat and Rack plating, Twickenham Plating Group can undertake all your surface finishing requirements.
      
      As specilists in the field of plating TPG can assist with process specification and evaluation, materials & metallurgical investigation, pre and post plating services and much more.
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Aluminium Conversion Coating

Chromate conversion offers a cost effective non-electrolytic process for coating aluminium resulting in excellent corrosion resistance, a good pre-paint finish and good adhesion qualities.

Applications

Aluminium conversion coating is generally found on space / aerospace products or where corrosion protection is required with good electrical conductivity.

Our Expertise

TPG can apply aluminium conversion coatings to a variety of different shaped components. TPG can also apply this process selectively in conjunction with other finishes such as electroless nickel silver etc.

Technical Information

Types	Plating Methods	Base Materials	Properties	Specifications	Electrical Resistivity (10-8 Ωm) at 0°C (273.2°K)
Alocrom 1200 Iridite NCP SurTec 650	Jig/Vat/Rack	Suitable Aluminium	High Corrosion Resistance, Good adhesion qualities	DEF 03-18 superseded by SAE AMS 03-18, MIL-C-5541, MIL-DTL-81706B	8μΩ/m