Solder or epoxy is typically used to bond radiator cores to the primary tank. This bond is a common point of corrosion and stress failures in radiators, causing radiator fan damage. A vehicle's radiator undergoes extremes in temperatures each time the vehicle is driven. Rapid expansion and contractions of the radiator material takes place with the fluctuations of heat. This may cause an increased radiator heat transfer at any weak point where the expansion and contractions forces are exaggerated. A loss of solder or epoxy between the fins and tubes may cause find bond failure and in turn, radiator tube failure. A radiator leak fix by way of a new radiator will be mandatory at this point to keep your vehicle in good working condition.
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Fin Bond Failure
A loss of solder bond between fins and tubes. Fins are loose in core. This causes loss of heat transfer and reduces the strength of the Radiator.