This website uses cookies

Cookies remember you so we can give you a better service online. By using this website or closing this message, you are agreeing to our Cookies notice.

Agree and closeX

Conversion on Aluminum

Conversion coatings produce a thin film on aluminium which is amorphous in structure and hydrated with water. The process is used in a wide range of applications such as corrosion resistance, where electrical conductivity is required on a specific area of a part. It is also used as an undercoat for paints, where it improves the adhesive strength and the corrosion protection.

SWMF offers a Hexavalent Conversion (Alocrom), as well as the environmental friendly alternative SurTec 650)

Plating Capabilities

  • Precision masking available for selective plating
  • ALOCROM 1200: when applied for corrosion protection.
  • ALOCROM 1000: when applied for conductivity
  • BRUSH ALOCROM available
  • SurTec 650: Hexavalent Free Conversion
  • SurTec 650 Marker-Pen available (Hexavalent Free)
  • Irridite NCP

Typical Applications Of Chromate Conversion

  • Bonding points for elec. contact on anodised parts
  • Undercoat for paint finishes
  • Corrosion Protection

Related Finishes

  • Sulphuric Acid Anodising
  • Chromic Acid Anodising
  • Tartaric Acid Anodising


  • Hexavalent Chrome Compounds such as chromic acid, which is used for the ALOCROM Conversion are carcinogenic. Therefore the EU-regulation REACH considers chromic acid as a substance of very high concern which means that a further use of the substance after set 17 could only be possible with authorisation. 

I have recommended you on many occasions. It's great service.
They are consistent, reliable and I have a good working relationship with them
Good technical knowledge, service and cost.
The turnaround times are good and the back office support is good too.
Good company, would certainly recommend you.