Could HMS Hood have been preserved in concrete?

Could HMS Hood have been preserved in concrete like Mikasa while remaining treaty-compliant?

Technically yes, but concrete preservation carries serious corrosion risks and would not necessarily keep the hull in good condition.

HMS Hood could theoretically have been immobilised in concrete and rendered compliant with treaty restrictions. That treatment would not guarantee sound preservation. The concrete setting used for Mikasa has contributed to serious rust and access problems around the hull. Britain would have retained the ship as a fixed memorial while accepting substantial long-term preservation risks.