SOCOSURF TCS and SOCOSURF PACS can be used for:
•conversion and sealing after anodizing on aluminium to obtain corrosion resistance, or to promote paint adhesion.
•local touch-ups on aluminium alloys.
The process consists of 2 successive baths:
1. SOCOSURF TCS is used:
•for conversion, to form an iridescent protection layer on the surface of the part, or
•for sealing after anodizing (OAS, TSA, BSA, etc.).
It is a trivalent chromium (Cr(III)) based solution.
2. SOCOSURF PACS is a post-treatment used to reinforce the conversion or sealed anodized layer.
The process can be used for local touch-ups (refer to the “Socosurf TCS Socosurf PACS touch-up annex”).