Why Teak maintains its corrosion resistance in marine environments ?

Teak maintains its corrosion resistance in marine environments through inherent physical and chemical characteristics.

The exceptional durability of teak primarily stems from its natural oils and silica content. These components endow teak with remarkable weather resistance, enabling it to preserve structural integrity even under harsh marine climatic conditions. Furthermore, teak exhibits the lowest expansion and contraction rates among all wood species, meaning it remains dimensionally stable in environments with significant humidity fluctuations. This minimized dimensional variation substantially reduces corrosion risks caused by material movement. Historically, the large sailing ships of Zheng He's fleet utilized teak hulls, demonstrating teak's exceptional durability in marine environments through centuries of maritime service.