Commonly the electrolytic capacitor will fail when a reverse polarity voltage is applied. When ive seen blow caps the fluid is usually a very thin oil type solution which never dries. Rap On Replacing Electrolytic Capacitors Removing And Replacing Surface Mount Electrolytic Capacitors Rap On Replacing Electrolytic Capacitors Appears to be glue leaking capacitors tend to have a white powdery substance not always on them. Leaking capacitor or glue . Often seen as a brown tinged stain on the pcb. The glue itself is harmless. Electrolyte usually leaks out through the capacitors top vents which your capacitors dont have or its leads and dries to a light colored powder. That is non conductive adhesive used to hold the electrolytic capacitors and other components in place during assembly of the printed circuit board pcb and to provide rigidity to tho...
