Originally Posted by
Bill Dufour
I remeber reading years ago about a duct sealing method being invented at Lawence Berkely lab when I worked there. They sealed up all the registers of a house furnace duct system. Then they pumped in a special gas at low pressure. As it leaked out of joints it would turn into a solid and seal the leaks. It had to run for several hours I have no idea what vaporised the glue.
They do use pressurized smoke to find vacuum leaks in cars. Folks adapt those party fog machines to do this.
Bil lD
I saw a This Old House episode recently where they did this, so a version must be commercially available.
- After I ask a stranger if I can pet their dog and they say yes, I like to respond, "I'll keep that in mind" and walk off
- It's above my pay grade. Mongo only pawn in game of life.