putty vs. teflon tape


Old 02-28-03, 07:49 AM
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Question putty vs. teflon tape

When should I use plumber's putty?

When should I use teflon tape?

I do a lot of minor plumbing repairs on my house and have never understood when to use one, or the other. I have a plumber friend that NEVER uses teflon tape (he's old school). However, another friend of mine ALWAYS uses teflon tape. What is the difference? What are the advantages/disadvantages of each? Thanks!
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Old 02-28-03, 11:44 AM
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Putty is used between two non threaded surfaces like on a sink pop-up and basket strainers for a kitchen sink, read the labels for some surfaces say not to be used on it, like mable, in this case if it's marble, then use silicone.

Teflon tape and pipe dope is used on threaded fittings, on the male end thread.

I like to use teflon tape on plactic fittings and pipe dope on metal fittings, reason for teflon tape on plastic fittings is pipe dope will make the thread to slick and could cause you to overtighten the fitting.
Old 02-28-03, 01:21 PM
mike the canuck
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Just a side note...
I found out the hard wat that you must always wrap the tape in the direction of the threads...If you are twisting your fittings together and the tape does not go in the same direction, it will rip and tear and create less of a tight seal.
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