Develop for major exterior parts of the motors after years of research and testing, ydc-30 offers truly superior anti-corrosion properties.
(used on 9.9hp and above)
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The exterior finish consists of five thick coats: two epoxy primer layers, two acrylic –resin layers and finally an extra clear acrylic-urethane coat for protection.
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Yamaha uses strategically placed aluminum and zinc anodes for maximum corrosion protection.theses anodes are even larger than necessary ,ensuring totale effectiveness.
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Extensive use of high quality stainless steel is made in all Yamaha outboards for top durability where it counts. |
Without yamaha’s freshwater flushing device it is possible to hook a hose directly to the motor and give it a complete internal flushing after use, this providing additional protection against corrosion.( standard on selected models) |
This zinc coating is very effective in protecting parts against corrosion while also serving as a sub-anode to back up the main anodes. |
ANTI-CORROSION SYSTEM 
