Propspeed - A Cleaner Solution for Underwater Growth and Corrosion
With the consequences of global climate change on the rise and extreme weather events becoming more and more prevalent, the importance of protecting the environment and our oceans is vital now more than ever. As a company, Propspeed is dedicated to creating solutions that are not harmful to the environment and help with challenging environmental issues like the spread of invasive species, making vessels more efficient, while reducing fuel usage and emissions, and protecting underwater metals from the destructive effects of corrosion.
Propspeed applied to all underwater metals
Propspeed versus no Propspeed
As for fuel efficiency, research has shown that propellers that have as little as 16.6 micrometres roughness can result in a 5% efficiency loss. This highlights the low end of what fouling on a propeller can cause in terms of efficiency loss and fuel burn. Over the service cycle of the Propspeed system, the product can not only reduce fuel cost but also greenhouse gas emissions and sustain the performance and integrity of the boats underwater assets.
Underwater corrosion and electrolysis on a vessel are a result of the movement of ions from a solid (like a propeller) to a liquid solution (like the ocean). In what is called “wet cell corrosion”, you need four components: an anode or positively charged part, a cathode or a negatively charged part, an electrolyte or electrically conducting solution and a connection between them. Considering that some of the most expensive and critical components of a vessel like shafts, props, pod drives and outdrives are constantly under attack from corrosion, it makes sense to ensure the best protection available. An insulating coating system is very effective at preventing severe corrosion on all sorts of vessels and Propspeed is an excellent insulator. Not only does it protect these vital parts from corrosion and electrolysis, the coating reduces the load on anode systems and prevents accelerated anode burn that results in the carcinogenic makeup of the anode from leaching into the ocean. Foul-release coatings have the added benefit of preserving the integrity of metal surfaces, unlike antifouling paints, which cause copper to leach out of bronze, weakening the material. A coating system that is designed to both prevent corrosion and provide foul-release properties is ideal for propellers, running gear and other underwater metals.
Corrosion on a propeller and shaft