What epoxy/sealant is safe to be used on equipment that will be in contact with e-liquid

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capthook

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I fix my hairline cracks in plastic tanks with a thin application of super glue on the exterior of the tank. And smooth it out with a toothpick before it dries.

On a side note, for me, most cracks are from over-tightening. So I get it just snug, rather than crank it down.
 
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CountingCrows

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I fix my hairline cracks in plastic tanks with a thin application of super glue on the exterior of the tank. And smooth it out with a toothpick before it dries.

Cyanoacrylate adhesives are not food safe and they are not made with FDA approved substances for direct/indirect food contact. Any epoxy, when cured, would be a better alternative I believe.
 
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englishmick

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Years ago I tried to rebuild Nautilus coils and I was looking for a way to block off the spare juice holes. Guess I went to all the same places as you with the same lack of success. Eventually I found some useful suggestions on beer brewing sites. There are silicon sealant products that are safe for full time contact with food which home brewers use. Silicon is good at handling heat as well.

Not sure how you would use it to seal small cracks though. You might need to completely cover the inside surface of the glass with a thin layer of silicone.
 

CountingCrows

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Years ago I tried to rebuild Nautilus coils and I was looking for a way to block off the spare juice holes. Guess I went to all the same places as you with the same lack of success. Eventually I found some useful suggestions on beer brewing sites. There are silicon sealant products that are safe for full time contact with food which home brewers use. Silicon is good at handling heat as well.

Not sure how you would use it to seal small cracks though. You might need to completely cover the inside surface of the glass with a thin layer of silicone.

Thanks for this information englishmick. Actually silicon is very good at sticking to small cracks. I have done complete redo of silicon in my house. A minute amount entering the crack would probably seal it.

The Loctite 595 I mentioned in the OP is for F&B. I will use that one first.
 

CountingCrows

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Every description I found that refers to the Iken tank material describes as glass of some type. I hope the epoxy works to seal it and prevent the cracks from growing.

In any case, it's great you already have plans B and C in place. Good luck!

I don't think this is any kind of glass. But I am not sure. I am not able to take it out. Regardless, both silicon and epoxy I mentioned on the OP stick to glass. Thank you for spending your time for me, 440BB.
 

CountingCrows

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Are there pics of said cracked tank?


20211025-093228.jpg


Dunno why img is not showing. Here is the link: https://i.ibb.co/hCRd5yM/20211025-093228.jpg
 

CountingCrows

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Eventually I found some useful suggestions on beer brewing sites. There are silicon sealant products that are safe for full time contact with food which home brewers use.

That is what I am saying. Not everything we eat and drink come in perfectly molded containers. They attach bottoms, they put cap seals, etc.

Any chance you can remember what you used or where you went so we can have a reference and pursue this further?
 

englishmick

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That is what I am saying. Not everything we eat and drink come in perfectly molded containers. They attach bottoms, they put cap seals, etc.

Any chance you can remember what you used or where you went so we can have a reference and pursue this further?

Sorry, it's been several years and it's long gone. I got a small tube. All I remember is reading about it on a home brewing forum and ordering on-line.

Just saw your photo. I've had a few tanks with the glass enclosed in a metal cage like that. Presumably the cracks continue under the metal. Don't know about the structure above and below the visible glass, but if the leaking only comes out in the window part and not at the bottom of the metal cage I guess you could glue or caulk it on the outside rather than the inside. That way there would be little or no contact with the juice inside. And hopefully that would stop the cracks growing.

Good luck
 

CountingCrows

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Sorry, it's been several years and it's long gone. I got a small tube. All I remember is reading about it on a home brewing forum and ordering on-line.

Just saw your photo. I've had a few tanks with the glass enclosed in a metal cage like that. Presumably the cracks continue under the metal. Don't know about the structure above and below the visible glass, but if the leaking only comes out in the window part and not at the bottom of the metal cage I guess you could glue or caulk it on the outside rather than the inside. That way there would be little or no contact with the juice inside. And hopefully that would stop the cracks growing.

Good luck

Yes I figured you would write on your first message, but still took the shot!

I can't get inside, so yes I will repair from outside. I'd not repair from inside even if it was accessible. Probably cracks continue under the metal like you said, but It only leaks from the visible crack.
 

UncLeJunkLe

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This does not feel like glass to me. But it is nto important

Ah, but it is important. The way you described the cracking before led me to believe it was plastic and so I assumed that your liquids were cracking the tank. The picture tells a different story.

If glass, the problem is accidents and possibly rough handling. Using a silicone vape band around that can mitigate these issues to a degree. This is important seeing how particular you are as to the tanks/coil heads you use. So you have to baby those tanks more than one would normally baby tanks. You can only repair these so many times and only under certain situations.

That crack screams glass. Of course, you will one day find out for sure. Let us know.
 
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zoiDman

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20211025-093228.jpg


Dunno why img is not showing. Here is the link: https://i.ibb.co/hCRd5yM/20211025-093228.jpg

An easy way to tell if that Tank is Glass or Plastic is to touch a Soldering Iron Tip to a Non-Cracked portion of the Tank.

If it is Plastic, it will Melt. If it isn't Glass, it Won't.

BTW - Never put a Soldering Iron Tip on a Crack in Glass. That can make the Crack Grow. In fact it is how you can Crack Glass along a Score Line.
 

UncLeJunkLe

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An easy way to tell if that Tank is Glass or Plastic is to touch a Soldering Iron Tip to a Non-Cracked portion of the Tank.

If it is Plastic, it will Melt. If it isn't Glass, it Won't.

But that's not a good idea in the context of the OP's situation, assuming it is plastic.

I find that a light rap up against the bottom of one of my front teeth reveals if something is glass or plastic. Glass has a bright feel/sound whereas plastic has a dull feel/sound.
 

zoiDman

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But that's not a good idea in the context of the OP's situation, assuming it is plastic.

I find that a light rap up against the bottom of one of my front teeth reveals if something is glass or plastic. Glass has a bright feel/sound whereas plastic has a dull feel/sound.

If it is a Crack in Plastic, that you might Easily Fix by using a Soldering Iron. And then all those MSDS's are no longer needed.

If it Is Glass, well then the OP is back at Square One.
 
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CountingCrows

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Thanks zoiDman and UncleJunkle.

Yes I get the point about using a soldering iron to fix plastic. Someone else also suggested, it makes sense.

Here is another tank: https://ibb.co/TrmpnD9

These tanks are not roughly handled. They were used only inside my home. I also use few flavours (Hangsen Arabic and TFA Vanilla), no tank crackers. I don't know if Acetyl Pyrazine cracks tanks, though. I add 1%.

Actually, I had many other tanks, too. IKEN is the only one that cracks. And all my IKENs are cracked.

I will experiment with soldering iron on some spare tanks from Vaporesso NGR-X. Then check on one of IKENs.
 
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zoiDman

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Thanks zoiDman and UncleJunkle.

Yes I get the point about using a soldering iron to fix plastic. Someone else also suggested, it makes sense.

Here is another tank: https://ibb.co/TrmpnD9

These tanks are not roughly handled. They were used only inside my home. I also use few flavours (Hangsen Arabic and TFA Vanilla), no tank crackers. I don't know if Acetyl Pyrazine cracks tanks, though. I add 1%.

Actually, I had many other tanks, too. IKEN is the only one that cracks. And all my IKENs are cracked.

I will experiment with soldering iron on some spare tanks from Vaporesso NGR-X. Then check on one of IKENs.

Just Looking at the jpg, that Looks like Glass. But the Soldering Iron will Tell the Tale of the Tape for All to See.
 
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