According to the SOLAS website, one of their stainless steel propellers was submerged in polluted water for two years and still shines.
SOLAS site features details on their line of stainless steel propellers and the 24-10 stainless steel used to ensure better corrosion resistance than traditional 15-5 stainless steel. The high Chrome and Nickel composition of SOLAS propellers are also highly wear resistant.
The SOLAS site adds…
Unlike the traditional material, the new material is a true Stainless Steel. It will never rust and is also very difficult to be worn out. SOLAS offers variety propeller series to meet different requirements.