Etching produces a matt finish which will cover most extrusion lines, surface scratches and give an even coverage. If etching does not cover the extrusion lines, on your aluminium extrusions, we can also offer polishing which will blend in the surface prior to etching.


This produces a matt finish to the aluminium but with a brighter appearance when compared to just etching.

Chemical Brightening

This produces a bright decorative finish to the work and is often used to create a high degree of reflectivity often required for the lighting industry.

Please note that not all aluminium alloys are ideally suited to chemical brightening.  If you require any further advise on this matter please feel free to contact us on 0121 622 1850.


Surtec 650 V is a replacement for Alocrom 1200. It is a liquid Trivalent chromium based chemical which when diluted with water will form an iridescent blue protective chromate coating on ciran oxide free Aluminium. It is approved for aerospace to US MIL-DTL-81706 and MIL-DTL-5541F.  the main benefits of this product are that It contains no Hexavalent Chromium- and meets all RoHS test criteria (IEC1  11/24/CD ) and offers excellent corrosion protection without paint.