Freds
Veteran Member
I was always told it was asbestos. I used to be in the HVAC business, too, and was told they used to dip the tape in water then wrap their joints with it to seal them. When done right it can be a real bear to get off. If you have silver colored cloth flexible connections in your ductwork, that's asbestos, too.
If it was my house the canvas connection would go because the fabric is in the airstream, but the asbestos tape would stay unless you were redoing your duct system. I've got it around a lot of my pipes in my house...
cough, cough /forums/images/graemlins/shocked.gif
If it was my house the canvas connection would go because the fabric is in the airstream, but the asbestos tape would stay unless you were redoing your duct system. I've got it around a lot of my pipes in my house...
cough, cough /forums/images/graemlins/shocked.gif