- #36
anorlunda
Staff Emeritus
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sophiecentaur said:Two clean surfaces of the same metal could stick together very easily
Put a steel bolt through a hole in an aluminum sailboat mast, come back 30 years later and they will be welded together. That happens even if the surfaces were dirty or greased. Only anti-galling compound will prevent it.
It also happens in devices like windlasses that use both aluminum and steel parts.