Galden refers to a perfluorinated liquid (perfluoropolyether, PFPE) used in vapour-phase soldering. Galden is characterized by a precisely definable boiling point, which allows for extremely precise temperature control. This enables uniform heating of the assemblies without overheating or the influence of oxygen. This property makes Galden particularly suitable for complex or sensitive soldering applications.
Galden is heated in the soldering system until it vaporizes and produces a homogeneous vapour. This vapor condenses on the cooler surfaces of the electronic assembly and transfers the heat very efficiently.
As the vapor temperature is limited by the boiling point, overheating of sensitive components is effectively prevented, a key advantage in the
The condensed Galden vapor flows back into the liquid container and is vaporized again. This results in a closed cycle. Due to its chemical inertness, non-flammability and reusability, Galden is particularly suitable for industrial soldering processes. Galden also ensures uniform, gentle and reproducible heat transfer.
IBL recommends the Galden heat transfer agent from SYENSQO for use in vapor phase soldering systems. The LS and HS series were developed in collaboration with SYENSQO to meet the requirements of vapor phase soldering: