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Biofouling

  1. Are copper-nickel alloys immune to fouling in seawater?
  2. When does macrofouling occur on copper-nickels?

Q Are copper-nickel alloys immune to fouling in seawater?

A As for copper, copper nickels have a high inherent resistance to macrofouling. However, there will be normally be colonisation of microfouling (slimes).

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QWhen does macrofouling occur on copper-nickels?

A The copper nickel needs to be freely exposed and not galvanically connected to less noble alloys to get the best overall resistance to biofouling. Prolonged exposure to quiet waters might lead to some colonisation of macrofouling but is normally loosely attached and can often be removed very easily by a light scraping action.

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