Old Goop on Drain Pipes - What is it?
Joe wrote:
On Jul 11, 11:25 am, Red Green wrote:
Often when I take apart OLD plastic drain piping under sinks I find some
really sticky brown material on the threads. ...
Anyone know what it is or if it's still used?
Sounds like Permatex #3 Aviation Grade sealant. ...
Maybe, but doesn't seem at all likely for plumbing, particularly drain
lines that aren't pressurized.
I would strongly suspect it was a pipe dope but what specific one in
particular I don't know...
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