SurTec 650 is an advanced chromium-free chemical conversion coating for aluminium and its alloys. It forms a thin, protective layer that resists corrosion while remaining fully conductive — a modern alternative to coatings like Iridite or Alochrom.
Excellent resistance to oxidation and environmental exposure.
Uses trivalent (Cr³⁺) chemistry — fully RoHS and REACH compliant.
Maintains low electrical resistance, ideal for electronic and bonding applications.
Adds virtually no thickness, preserving tight tolerances.
Excellent primer for paints, powder coatings, and adhesives.
650 gives a clear to faint iridescent appearance while 650V gives a visual indication in the form of a slight hue.
Chromate-free/RoHS-compliant
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