Liquid teflon or tape?

e vassar · 05-06-2021, 06:17 PM

For my water temp probe fittings in the electric water pump....thanks

Mark Ruset · 05-06-2021, 06:25 PM

Either will work, however the tape is much neater

e vassar · 05-06-2021, 06:32 PM

Ive always had good luck with tape, but now reading can cause water pump housing to crack.

pmrphil · 05-06-2021, 06:54 PM

Only if you overtorque it. Keep in mind that teflon is a lubricant as well as a sealant.

CMcAllister · 05-06-2021, 11:11 PM

I prefer tape. Neater. And I can control the thickness.

John Dinkel · 05-07-2021, 10:00 AM

I like tape.

SSDiv6 · 05-07-2021, 01:46 PM

In the aviation world, the use of Teflon tape is prohibited due to the potential of the tape deteriorating and slivers getting into the fuel, hydraulic or other systems.

Since AN fittings do not seal at the threads, but rather at the flare, mechanically, metal-to-metal, there is no need to use sealant on the flare end.

The only time you need to use sealant is on any fittings with pipe threads. The proper process to use the liquid Teflon sealant is to apply a single bead all around the thread, keeping it away from the first two threads and the end of the fitting. A good indication that just enough sealant has been applied is when a small amount of sealant has been pushed out of the fitting all the way around the threads.

The best fitting sealants that I recommend are Permatex 59235 and Loctite 567. They are fuel, oil and ethanol resistant and great with high pressure plumbing such as brake caliper fittings.

quickford1 · 05-07-2021, 03:07 PM

Bingo

KRatcliff · 05-07-2021, 03:13 PM

It is easy for me to tell when I put the tape on backwards. A little harder with the liquid.

SSDiv6 · 05-07-2021, 03:18 PM

Quote:

Originally Posted by KRatcliff

It is easy for me to tell when I put the tape on backwards. A little harder with the liquid.

LOL! Are we talking about liquid Spirits?

05-06-2021, 06:17 PM	#1
e vassar Member Join Date: Jul 2015 Posts: 357 Likes: 63 Liked 238 Times in 93 Posts	Liquid teflon or tape? For my water temp probe fittings in the electric water pump....thanks

05-06-2021, 06:25 PM	#2
Mark Ruset Member Join Date: May 2006 Location: Southwest Florida Posts: 251 Likes: 25 Liked 35 Times in 25 Posts	Re: Liquid teflon or tape? Either will work, however the tape is much neater __________________ Mark Ruset 2048 STK

05-06-2021, 06:32 PM	#3
e vassar Member Join Date: Jul 2015 Posts: 357 Likes: 63 Liked 238 Times in 93 Posts	Re: Liquid teflon or tape? Ive always had good luck with tape, but now reading can cause water pump housing to crack.

05-06-2021, 06:54 PM	#4
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 406 Likes: 1,324 Liked 280 Times in 120 Posts	Re: Liquid teflon or tape? Only if you overtorque it. Keep in mind that teflon is a lubricant as well as a sealant. __________________ Phil Molski PMR Performance S/C 1623

05-06-2021, 11:11 PM	#5
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 544 Likes: 9 Liked 768 Times in 213 Posts	Re: Liquid teflon or tape? I prefer tape. Neater. And I can control the thickness.

05-07-2021, 10:00 AM	#6
John Dinkel Senior Member Join Date: Nov 2005 Location: Pinckney, Michigan Posts: 503 Likes: 363 Liked 234 Times in 63 Posts	Re: Liquid teflon or tape? I like tape. __________________ John Dinkel 3295 STK

05-07-2021, 01:46 PM	#7
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 2,997 Likes: 693 Liked 1,466 Times in 548 Posts	Re: Liquid teflon or tape? In the aviation world, the use of Teflon tape is prohibited due to the potential of the tape deteriorating and slivers getting into the fuel, hydraulic or other systems. Since AN fittings do not seal at the threads, but rather at the flare, mechanically, metal-to-metal, there is no need to use sealant on the flare end. The only time you need to use sealant is on any fittings with pipe threads. The proper process to use the liquid Teflon sealant is to apply a single bead all around the thread, keeping it away from the first two threads and the end of the fitting. A good indication that just enough sealant has been applied is when a small amount of sealant has been pushed out of the fitting all the way around the threads. The best fitting sealants that I recommend are Permatex 59235 and Loctite 567. They are fuel, oil and ethanol resistant and great with high pressure plumbing such as brake caliper fittings.

05-07-2021, 03:07 PM	#8
quickford1 Member Join Date: Aug 2008 Location: Davidson, NC Posts: 265 Likes: 452 Liked 18 Times in 10 Posts	Re: Liquid teflon or tape? Bingo

05-07-2021, 03:13 PM	#9
KRatcliff Senior Member Join Date: Sep 2011 Posts: 753 Likes: 74 Liked 502 Times in 135 Posts	Re: Liquid teflon or tape? It is easy for me to tell when I put the tape on backwards. A little harder with the liquid.