Electrolube freh freezer spray hfo low gwp electrolube freh200 p electrolube freh is a powerful non corrosive freezer spray for use as a rapid and safe method of cooling small components particularly in electrical and electronic equipment and to detect faulty soldered joints and overheating components p p freh contains a non flammable fluorinated refrigerant that combines the low gwp global warming potential of hydrocarbons with the ulta low mir maximum incremental reactivity an