Ptfe Tape

[chr15_8]

Is PTFE tape marine safe and will it be ok to seal a theaded couple out the tank? I would prefer not to use pipe cement incase i ever need to reseal a bulkhead (hopefully ill never have to) or would silicone be better?

thanks
chris

 

[ben1987]

not sure tbh mate, id do it properly though i reckon

 

[rabbut]

PTFE is marine safe and ideal for threads, but I wouldn't use it for pipe junctions

 

[chr15_8]

not sure tbh mate, id do it properly though i reckon

yea but like i said if a bulkhead was to fail i would need a new bulkhead and few bits of new pipe. Would silicone be any good (same stuff i used on the bulkheads) ive siliconed pipework together for an internal part of a filter on my koi pond and it was watertight. with it being thread i thought it might act more as a washer?

PTFE is marine safe and ideal for threads, but I wouldn't use it for pipe junctions

its a threaded coupler.

would silicone be better then?

 

[mixmaster jay]

use the ptfe on the threads and and silicone everywhere too thats what ive done on my 2 bootom bulkheads fittings and its totally watertight

 

[TigerIssey]

In the words of JC Delbeek and J Sprungs in my nice new book.

Use PTFE tape clockwise, with the fitting in your left hand, hold the tape in place with your thumb to begin and pull the tape tightly as you wind it round the fitting. Use about 10-12 turns for a fitting on a suction side of a pump and different materials and 6 turns for other fittings, do not use too many turns as a thick wad of tape can stress the walls of the fitting screwed over it.

 

[chr15_8]

In the words of JC Delbeek and J Sprungs in my nice new book.

Use PTFE tape clockwise, with the fitting in your left hand, hold the tape in place with your thumb to begin and pull the tape tightly as you wind it round the fitting. Use about 10-12 turns for a fitting on a suction side of a pump and different materials and 6 turns for other fittings, do not use too many turns as a thick wad of tape can stress the walls of the fitting screwed over it.

cheers tina and mixmaster jay

im assuming i should use 6 turns then. Ill add 6 turn and then add abit of silicone to the end of the (were there is no PTFE tape)

cheers

 

[rabbut]

So long as the PTFE is under the "bolt" part all the way arround and for it's entire wideth, it should be 100% water proof without silicone. If it isn't, you didn't wind it correctly I'd personally use less, about 3-4 winds, for most fittings, unless the fitting are particularly loose before applying the tape

 

[chr15_8]

So long as the PTFE is under the "bolt" part all the way arround and for it's entire wideth, it should be 100% water proof without silicone. If it isn't, you didn't wind it correctly I'd personally use less, about 3-4 winds, for most fittings, unless the fitting are particularly loose before applying the tape

ok thanks
both the fittings are from tmc and fit very well.

i think the silicone is just more reassuring than anything else tbh

 

[jtnova13]

i've used teflon tape on non threaded junctions and they were water tight. Only 3 rounds too. This is on 1-1/4" drain and return line.

 

[chr15_8]

its all done now. time will tell

i've used teflon tape on non threaded junctions and they were water tight. Only 3 rounds too. This is on 1-1/4" drain and return line.

Yea ive just put some on my durso (ive made it adjustable) and tested it out in the bath (capped one end) and was watertight