I am considering Zingard from Mgduff.
It does require some surface preparation the first time, but the subsequent layers (following seasons) can be applied after a quick cleaning
of the remaining Zingard - thus saving time on extensive surface preparation each year.
It might not be the world best propeller
coat - but apparently - no propeller
coat is....BUT the zinc layers actually works as an extra zinc and theoretically prevents corrosion
of the propeller..cheap, corrosion
prevention, easy application...seem to me that this product beats the PropSpeed, etc..