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Oil leak
Posted: Tue Mar 10, 2015 8:40 am
by jenks
Morning folks,does anyone know of a oil proof tape that I can use on pipe threads...
Cheers
Jenks
Oil leak
Posted: Tue Mar 10, 2015 8:45 am
by papasmurf
Plumbers Tape For Everything. Polytetrafluoroethylene (PTFE) there isn't much it won't seal. (Apart from Butane/Propane which sealants should not be on used anyway.)
Oil leak
Posted: Tue Mar 10, 2015 9:02 am
by papasmurf
I should have added, with compression joints it should be the olive, taper, or cup and ball doing the sealing, no tape or sealant should be necessary. They should seal of them-selves as they are usually brass, copper or bronze, far too many people crank them up too tight. Compression fittings for instance are from finger tight 8 mm pipe one and a quarter turns, 10 mm pipe one and a half turns. (Using locktight on the threads is of more use than tape.)
Oil leak
Posted: Tue Mar 10, 2015 9:06 am
by Valsp
Not strictly true Loctite 572 is suitable for oil, gas and air on metal fittings. Expensive but ideal for these types of joints
Oil leak
Posted: Tue Mar 10, 2015 9:13 am
by papasmurf
Oil leak
Posted: Tue Mar 10, 2015 9:13 am
by papasmurf
But locktight is not a sealant.
Oil leak
Posted: Tue Mar 10, 2015 9:41 am
by Norm
I'm pretty sure Loctite make a thread sealant, I have a bottle in the shed but can't be bothered going to look at it to see the number
Oil leak
Posted: Tue Mar 10, 2015 1:21 pm
by Valsp
From Loctite's website
LOCTITE 572
LOCTITE 572 for metal, slow cure thread sealant
Note the words Thread Sealant. Jenks was looking for something to use on pipe threads
Oil leak
Posted: Tue Mar 10, 2015 9:26 pm
by PeteF
If this is a compression fitting then sealing the thread will not necessarily seal the joint. If it's a screwed joint then PTFE will be fine.