South West Metal Finishing are in the process of installing a modern, state of the art Tartaric Sulphuric Acid Anodising Line (TSA) . This process is supported by Airbus as their chosen chromic – free replacement (which is Reach Compliant) for Chromic Acid Anodising (CAA) due to its similarities to CAA. The oxide layer produced by the process has a good corrosion resistance when sealed or primed, providing a good paint and adhesive adhesion in unsealed conditions. It is an electrochemical process used for both generating an aluminium oxide layer for corrosion protection and surface treatment prior to application of a corrosion-inhibiting primer. The main managed properties are corrosion resistance, paint adhesion, fatigue, and quality of the coating. There has been an unprecedented level of demand for this process due to the growth in Airbus and is known to be the choice for a number of other primes.
- Tartaric Sulphuric Acid Anodising