These are chemical conversion coatings for aluminium that form a thin, protective film on the surface. Unlike electroplating, it doesn’t build up an additional layer — instead, it converts the aluminium’s surface to improve corrosion resistance while preserving electrical conductivity depending on the weight of the conversion.
Provides excellent resistance to moisture and salt exposure.
Adds almost no bulk or weight to components.
Maintains good electrical conductivity, unlike some coatings.
Alochrom is gold in colour and is also available as Alochrom which is clear/slightly iridescent in appearance.
Acts as a primer layer, helping paint or other coatings adhere better.
Uses chromate chemistry, so environmental and health regulations may apply.
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