Water ingress indicator for electronic devices

A device comprising:

• a casing;
• and
• components within the casing that are susceptible to water damage;
• a water damage indicator mounted within the casing, the water damage indicator comprising a radiation cured, water-dispersible layer in direct contact with at least a part of the casing, the water-dispersible layer including a polymer and a UV-cured, water dispersible colorant, such that when water enters the casing, the water dispersible layer is at least partially removed to reveal the casing, thereby providing an indication of water damage to the components.

A method for detecting water damage in an electronic device comprising:

• receiving the electronic device which may have suffered water damage through ingress of water;
• examining a water damage indicator which includes a water-dispersible polymer layer which has been directly applied onto an interior surface of the electronic device by UV curing a UV-curable composition comprising a UV-curable ink, the polymer layer including a water-dispersible polymer and having a different color to the interior surface;
• and
• predicting an extent of water damage based on a level of the polymer layer removed.