Anodisers for all industry applications

       01623 627700  

Fast Response Service & Turnaround


Potassium Dichromate seal is the Industry Standard for Maximum Corrosion Resistance. It may be applied to Hard or Natural Sulphuric Anodised components. Applying to a Natural finish will give a Specific Mustard yellow colour as can be seen from the inset photo.


Applying to a Black Anodised finish may sometimes give a slight Yellow/Greenish tint, but generally it is negligible. Generally Dichromate Seal is not recommended for Decorative Coloured items as colours are affected as though being mixed with Yellow eg. Blue will come out Green Etc. For full Specification or samples please do not hesitate to contact us.


Potassium Dichromate Seal is widely used in the Aero-space, Military, Rail and Marine sectors giving excellent salt spray resistance to component parts. it can be applied as a single seal or followed by a second Hot Water seal to further enhance and maximise its qualities.

dichromate seal potassium dichromate colour   high corrosion resistance seal   salt water resistant seal

Quality Standards:
BS EN 12373-6:1999
Salt Spray Test to ASTM B-117. 500 Hours.



                      website by                   site hosted by