Overview
What is Aluminium Chromating?
Chromating (also known as chemical conversion coating or Alodine treatment) creates a thin, protective chromate film on aluminium surfaces. This process is widely used as a pre-treatment before painting or powder coating because it dramatically improves paint adhesion and provides a baseline layer of corrosion resistance. It is also used as a standalone finish where lightweight protection is sufficient.
Gallery & Process
See it in action
Why Choose This
Key advantages
Paint Adhesion
Increases paint bond strength by up to 400% compared to bare aluminium.
Corrosion Baseline
Provides 168+ hours of salt spray resistance even without paint.
Conductive
Unlike anodising, the chromate layer maintains electrical conductivity.
Fast Turnaround
Simple immersion process with rapid cycle times for high-volume orders.
Industries
Typical applications
Pre-treatment before powder coating
Aerospace structural components
Electrical grounding surfaces
Military hardware & defence enclosures
Automotive body-in-white parts
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