Originally Posted by mainah
I guess if one is concerned about rubber and moisture it would not be a good ideal to drive around in the rain.
I wouldn't be concerned about the moisture, but the lack of moisture - removing the moisture from the rubber. Moisture is a good thing.
At a previous job at a chemical plant, we used N2 regularly for removing moisture from chemical process lines and equipment after servicing/repair. Any moisture at all can have grave consequences in some processes.
Yes, it's great for leak-checking refrigeration systems too, and will keep moisture out of them as well as remove any that might not have gotten evacuated completely for whatever reason.