How to make an everlasting PTFE gasket, Very Easily...

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How to make an everlasting PTFE gasket, Very Easily...

Postby Samohon » Sat Oct 08, 2011 2:13 pm

How to make an everlasting PTFE gasket, Very Easily...

Thought I would share my PTFE gasket/Washer with yall.
I have been using a gasket I made the very same way as depicted on the photo's.
It shows no sign of ware and has never let me down once.
The gasket could be made to any size and works great for my VM extension pipe held together with a couple of OD's easy flanges.
Its very flexible and hard waearing, wont leech any baddies into our product and cheap to make...

Heres the materials you will need. You will also need a full roll of 10mm wide PTFE/plumbers tape.
A compass to draw the OD/ID of the washer would also help. (forgot to include them in the photograph...)

ptfe-washer1.jpg


After cutting out the cardboard washer, you will need to cut excess plastic from your spool of PTFE..
This will help us feed the spool through the hole while wrapping...

Now, very carefully wrap the PTFE around the cardboard washer, taking care to overlap the tape 50/50.
ptfe-washer2.jpg


Keep wrapping the PTFE tape around the washer until it becomes a lot thicker.
It usually takes a whole spool. Heres one finished for this blow by blow...
ptfe-washer3.jpg


And heres the same gatket with one of OD's easy flanges sitting on top...
ptfe-washer4.jpg


The gasket will flatten out over time with use/heat, but it will still compress to give us a vapour free seal.
You could also use a copper washer made from thin sheet, remember to cut the ID hole of the washer first, then trim off the OD.
Got the idea for a copper washer from Myles... Thanks goes to Olddog and Myles...

@Beginners/Novices:
Only use PTFE tape to make this gasket.
Do Not try to substitute the PTFE for silicone, plastic, rubber, or any other non tested compound...


Hope it helps to make the hobby easier and safer... :thumbup:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Prairiepiss » Sat Oct 08, 2011 2:34 pm

Nice one Sam. Thanks I mite have to give it a try. :clap:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby blind drunk » Sat Oct 08, 2011 2:42 pm

Nice :clap:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby banter_king » Sat Oct 08, 2011 2:47 pm

beautiful. you have been talking about your washers for a bit now. this should help lots of people out, including myself. Cheers!!
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby The Baker » Sat Oct 08, 2011 3:36 pm

The things you KNOW but don't realise!!
And then someone shows you... :oops:

I need gaskets/seals that look just like that for the swing-top jars I am using for macerating fruit. Strawberries and other fruit.
I studied the problem and thought it would be difficult to wrap the rubber seals (which will certainly flavour the product but I don't have enough other jars...)
because the rubber seals have to be stretched to fit the jars and they would be difficult to stretch after wrapping with the teflon.
So I will make these cardboard ones. Probably have to use thicker cardboard or a couple of layers of the thinner stuff;
and a bit extra teflon, to make up the required softness and thickness.

Thank you, thank you...
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby WalkingWolf » Sat Oct 08, 2011 4:33 pm

Thanks Samohan -- as The Baker mentioned -- the uses just keep on going and going and . . . . . .

Good to see ya back on the board. I was talking with my two younger ones this past week about our "common" last name there in Scotland. The kids thought it "kool" that the "clan" probably originated there.

take care my friend
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Bushman » Sat Oct 08, 2011 10:55 pm

Nice tutorial, this will make a great backup to what I already have! Your comment at the end about cutting the ID first reminds me of some of the safety labels we now have to have on containers, but I can see someones excitement to get it done and making the mistake. :thumbup:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby NcHooch » Sun Oct 09, 2011 5:33 am

I recon you could prolly make a large version of these to seal a boiler lid too.
:idea:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby ozone39 » Sun Oct 09, 2011 7:28 am

Great idea!!! I have been struggling for a boiler lid seal for some time now on my new build....I was considering using a natural cotton/hemp rope and wrapping in the same way....but I like the rigidity the cardboard offers.... I have a 20" on to build, thanks for the post Samohon...
thinking inside the box is for squares....
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Samohon » Sun Oct 09, 2011 7:32 am

NcHooch wrote:I recon you could prolly make a large version of these to seal a boiler lid too.
:idea:
NChooch

My thoughts exactly NC. Could be made as large as you wanted.
This, combined with the Easy Flange, could serve to make a long still column. modular. For storage purposes... :thumbup:

Thanks guy's, its sure to come in handy...
Dont think it would replace luting a joint with flour paste, but will certainly reduce the need...

Thanks again.. :ewink:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Samohon » Sun Oct 09, 2011 7:36 am

ozone39 wrote:Great idea!!! I have been struggling for a boiler lid seal for some time now on my new build....I was considering using a natural cotton/hemp rope and wrapping in the same way....but I like the rigidity the cardboard offers.... I have a 20" on to build, thanks for the post Samohon...


I reckon larger gaskets would be easier Ozone.
You will need a few more spools of tape, but its so cheap that it makes it worthwhile... :thumbup:

Just be sure to go around the cardboard 3 or 4 times and you'll have a gasket that will last for months, if not years...

Thanks again guy's... :thumbup:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby mash rookie » Sun Oct 09, 2011 8:37 am

Sam,
When you mentioned this method a couple of months ago I knew it was a brilliant idea.

I have Teflon sheet site glass gaskets that have been difficult to seal. I wrapped them with Teflon as you described to solve the problem. They still take a lot of tightening to seal.

I believe your simple cardboard wrap to be a superior method. The cardboard is be soft enough to conform to most surfaces, Teflon tape is available any corner hardware store.

Well done.

MR
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby cob » Sun Oct 09, 2011 10:41 am

mash rookie wrote:Sam,I believe your simple cardboard wrap to be a superior method. The cardboard is be soft enough to conform to most surfaces, Teflon tape is available any corner hardware store.

Well done.

MR


+1 this should be a sticky. :thumbup: cob
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Prairiepiss » Sun Oct 09, 2011 11:42 am

+2 should be a sticky. :thumbup:
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby frozenthunderbolt » Sun Oct 09, 2011 11:49 am

+3 a sticky - I'm going to go buy some ptfe tape now!
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby ozone39 » Sun Oct 09, 2011 12:27 pm

PTFE stock is going up...
thinking inside the box is for squares....
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Prairiepiss » Sun Oct 09, 2011 12:38 pm

I just picked up some 1" wide PTFE tape the other day. It's nice and thick too. I think it mite work pretty good for this.
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby jacksenz » Sun Nov 20, 2011 2:47 pm

Just went off NCHooch's comment and built me a gasket for my boiler (8 gallon stock pot). Am doing a run of All Bran right now and its holding up flawlessly. Only thing I can say is that the heavy corrugated card board I used was a pain to cut. Actually ended up using my dremel tool. Thanks for the idea!
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Re: How to make an everlasting PTFE gasket, Very Easily...

Postby Ian Jay » Sun Nov 20, 2011 3:03 pm

Ingenious! I will certainly try this when my next gasket fails. Thanks for the heads-up. :clap:
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