Having worked for years in our Cape Town facility, we at Protea Foundry have seen firsthand the effect the Atlantic Ocean has on unprotected steel. It is a very harsh and unforgiving environment. There is no room for guesswork when casting components for the turbulent depths of the southern hemisphere. That is the very reason we believe that the manufacture of effective sacrificial anodes is so much more than pouring molten metal. It requires an uncompromising, relentless commitment to material traceability and rigorous in-house testing.

The Real Cost of Bad Cathodic Protection
Over the years, we’ve spoken with numerous shipyard managers who have experienced the consequences of inadequate cathodic protection firsthand. A commercial vessel comes into dry dock and the hull is badly pitted as the zinc anodes fitted two years ago suddenly stopped working.

Often the root cause is bad alloy composition, not physical damage. A standard sacrificial anodecan be passivated with even a fraction of a per cent of the wrong chemical impurity. It just sits there inert, looking perfect, while the vital marine infrastructure it was supposed to protect rusts away slowly beneath the waves.

Accuracy from the first pour
This is precisely why we are so serious about our internal quality control processes. When we mould & cast high-capacity aluminium anodes or mil-spec zinc anodes, we are not just hoping for a good result. Every single batch that passes through our custom manufacturing line is rigorously checked for its spectrometer composition. Our technicians personally verify the metallurgical integrity of the raw melt before a pour even takes place, to ensure only top quality materials are used.

Clients require absolute certainty for the complex requirements of marine civil and infrastructure projects. We control the quality and testing of all our products in-house, so we have control over the final product. We know exactly what we put in the boiler, and we have the paperwork to prove it.

Machining & Traceability Together
Certainly our physical work doesn’t stop when the cast metal cools. Once a casting goes into our advanced machining and finishing department, that particular batch number goes with it. Whether we are running a standard high-volume production line or making bespoke one-off prototypes, full material traceability is locked in from initial production through to final dispatch.

We always tell our new foundry apprentices that our main job is really giving peace of mind. When an engineer fits one of our machined products to a deep sea oil rig or a busy harbour wall, they need to know it will do exactly what it says on the tin. They rely on our documentation alone to meet very strict maritime safety standards. “We’ve built our family reputation on honest, transparent certification since 1948 and we’ve been doing it steadily.”

Safeguarding the Working Ocean
The ocean will not stop trying to reclaim the steel we’ve put in it. But if we have the proper electrochemical defence systems in place, we can successfully hold the line. It takes painstaking attention to detail, an intimate knowledge of marine metallurgy and a stubborn refusal to take shortcuts. We are very proud of the reliable solutions we engineer locally. We build parts for the working ocean and we build them to last.

Contact Protea Foundry Today.