What Is Corrosion?
The chemical damage that spreads across your phone’s board after water exposure — even after the phone appears dry.
Definition: Corrosion is the chemical destruction of phone board components after water exposure. Water evaporates, but the mineral and ionic deposits it leaves behind continue reacting with copper traces, solder joints, and chip contacts — forming green or white deposits that spread and eventually destroy the circuit.
Why it keeps spreading
Even after the water evaporates, corrosion continues because the mineral and salt deposits left behind are themselves conductive and reactive. Singapore’s humidity provides the moisture these deposits need to keep corroding. A phone that gets wet on Monday and is “fine” can fail completely by Friday as the corrosion reaches critical board traces. The longer treatment is delayed, the more components are destroyed.
What corrosion looks like
Green deposits: Copper oxide on copper traces and connector pins. Classic sign of water damage on a board.
White powder: Mineral deposits (calcium, magnesium) from tap or pool water. Less destructive initially but still conductive and can bridge connections.
Related terms
→ Water Damage — the initial event that leads to corrosion
→ Ultrasonic Cleaner — the machine used to remove corrosion from boards
→ LDI — the indicator that confirms water entry
→ Logic Board — what corrosion ultimately destroys if untreated
Phone had water damage — even if it seems fine now?
Corrosion continues spreading. Bring it to PhoneDoctor for ultrasonic cleaning before more components are destroyed.