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Tight Wicking

Discussion in 'RTA' started by Fidola13, May 12, 2020.

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  1. Fidola13

    Fidola13 Prepper Verified Member ECF Veteran

    Supporting member
    Dec 20, 2017
    Boston
    I find that I wick (with rayon) MUCH tighter ,if that’s the correct word, than any of the YT reviewers do ESPECIALLY bottom airflow RTAs.

    I’ve never used cotton so I can’t offer any thoughts about it.

    However l, I’m ALWAYS amazed at how little wicking material is used when watching RTA building videos. And I watch quite a few Inc some who use rayon.

    I’m surprised at how much I pack the rayon in through the coil. I actually make it so tight that I twirl the one end I’m sliding into the coil. Depending on the coil gauge I’ll use a finger nail or tool to keep the coil from getting deformed.

    If I don’t follow this routine I end up getting leaking from bottom air flow tanks.

    maybe every one already knows this Maybe not. Hopefully it’ll help just one person afraid to use bottom air flow tanks due to leaks that so many are hesitant to try because of the “leaking”.

    Basically, if wicking is done correctly no RTA should leak unless there’s an o ring problem etc
     
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  2. DaveP

    DaveP PV Master & Musician ECF Veteran

    Supporting member
    May 22, 2010
    Central GA
    I do the same with Rayon wick (make it tight enough that you have to twist it to get through the coil). It shrinks and compacts a little when you juice it up.

    Cotton swells, so I use a little less.
     
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  3. SupplyDaddy

    SupplyDaddy I'm considered a Mad Scientist in some circles! Verified Member ECF Veteran

    Supporting member
    Oct 21, 2012
    San Antonio, Texas
    Same here, squeak it in there, shift the coil as needed and using rayon.
    Only difference is I try to use all Top Air flow.

    And if I rush it, don't do it right, blub blub blub and mouthful of juice. LOL
     
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  4. Eskie

    Eskie ECF Guru Verified Member ECF Veteran

    May 6, 2016
    NY
    Any rta not wicked properly for the correct wick material will result in leaks or poor wicking with dry hits. I use cotton and that swells when moistened within the coil. So too much is bad. Too little and it can leak. Rayon behaves differently so lacking the coil seems appropriate.

    Disclaimer I dint use rayon so that info is second hand. But certainly with cotton you use far less, so what you’re seeing in wicking to “loosely” applies to the wicking material used, almost always cotton. It’s not the same for rayon, the same way you cut and thin the tails. If you did that with cotton you’d get done nasty leaking.
     
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  5. Fidola13

    Fidola13 Prepper Verified Member ECF Veteran

    Supporting member
    Dec 20, 2017
    Boston
    I hear people say pull it thru until it hurts!!
     
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  6. ShowMeTwice

    ShowMeTwice PlusOnceMore ECF Veteran

    Supporting member
    Jun 28, 2016
    Very far out there!
    You should hear a faint (depending on your hearing) "squeaking" as the rayon is being pulled through the coil (as SupplyDaddy said). You can feel the right amount too.

    With rayon more is the rule, not an option (unless one enjoys leaking).

    I use both rayon and cotton too. Whatever I reach for gets used. No pref.

    ETA: Rayon Wick - Better Flow, Flavor, Longevity, and Nic Hit!! - Pt.2
     
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  7. stols001

    stols001 Mistress of the Dark Nicotinic Arts Verified Member ECF Veteran

    Supporting member
    May 30, 2017
    Tucson, AZ
    Yup yup yup lots of rayon in the coil. But not so much it breaks in half.

    I can overstuff ANYTHING. Take that however you want but believe it or not I had to learn to exercise a little restraint, even with RAYON. Heh. That is why it was the miraculous fix it was imagine doing that with COTTON (don't.)

    Anna
     
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  8. Fidola13

    Fidola13 Prepper Verified Member ECF Veteran

    Supporting member
    Dec 20, 2017
    Boston
    You make me smile!!
     
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  9. gsmit1

    gsmit1 Super Member ECF Veteran

    Apr 19, 2018
    I've been experimenting with wrapping a cotton shell over a rayon core. Like 1/3 rayon in the middle with 2/3 cotton on the outside. (give or take). Of course any ratio is possible.

    I'm going to try it the other way too. Rayon over cotton. Rayon wicks a lot faster, but holds a lot less liquid by volume when saturated.

    A hybrid wick should give the best of both worlds. AND a new group of experiments for me to play with :D

    So far the rayon inside of cotton is really good. It's not going to revolutionize vaping, but it is really good.
     
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  10. RuiG

    RuiG Super Member ECF Veteran

    May 4, 2019
    Portugal
    I must be doing something different.

    For me it's not about how tight it is inside the coil. That makes a different in gurgling, flavour or spit back.

    Another interesting tip is that I get amazing results in some atomisers using a technique similar to a Scottish roll.

    My main difference when wicking with rayon or cotton is how I fluff the tips of the wick and how I pack it in wick ports... that in essence should be the origin of leaking problems.
     
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  11. TrollDragon

    TrollDragon ECF Guru ECF Veteran

    Dec 3, 2014
    NS, Canada
    [​IMG]
     
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  12. stols001

    stols001 Mistress of the Dark Nicotinic Arts Verified Member ECF Veteran

    Supporting member
    May 30, 2017
    Tucson, AZ
    I would think rayon on the outside might preserve the wicking longer so yeah, try that.

    I am not even ever going to try thinking about doing that no thank you nu-huh. Mixing wicking sounds like the kind of trouble I DO not need. Heh.
    Anna
     
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  13. gsmit1

    gsmit1 Super Member ECF Veteran

    Apr 19, 2018
    I'm honestly not sure what you mean. What kind of trouble :)
     
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  14. Pigs

    Pigs Ultra Member

    Supporting member
    Jun 7, 2019
    Sydney Australia
    With cotton I try to balance the amount so I get best flavour/no leaks. Can't stand that muted flavour you get from too much cotton through the coil. I've only recently started using rayon and can't really say that the vape is better or worse yet. What's the benefit of rayon?
     
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  15. Brewdawg1181

    Brewdawg1181 Vaping Master ECF Veteran

    Aug 30, 2017
    Metro ATL
    Biggest benefits are much higher temp tolerance, longer, smoother fibers make it much more efficient in wicking, no cotton "break-in" flavor. But I don't use it any more, because I like the consistency of cutting KGD pads consistently sized every time, without fiddling to pull apart fibers, trying to get it right. If rayon came in pads, though, I'd use it.
     
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  16. f1vefour

    f1vefour Vaping Master ECF Veteran

    Dec 3, 2013
    Pensacola
    The largest benefits to me are temperature handling (you have to really try to burn a rayon wick) and longevity.

    I can use the same wick for weeks, I vape a simple diy peppermint menthol which vapes very clean but with cotton the menthol loses its cooling effect (mutes) after about 4 or 5 days. With rayon it takes much longer.

    There are other benefits but those are the two that has kept me using it for years.
     
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  17. UncleJunkle

    UncleJunkle Ultra Member Verified Member ECF Veteran

    Nov 29, 2010
    I don't care what anyone says, any RTA is gonna leak even a little bit, top or bottom air flow. It's just that with top airflow you won't know it until you lay it on it's side or put it in your pocket or purse where it gets oriented anyway but upright. I think the only thing that will truly eliminate or at least greatly reduce leaking is a juice shut off mechanism (which I hate WAY more than leaking as I never remember to open it lol).

    Don't flame me, bro...jmho.
     
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  18. gsmit1

    gsmit1 Super Member ECF Veteran

    Apr 19, 2018
    See THIS for some exceedingly useful information on rayon and cotton.
     
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  19. MacTechVpr

    MacTechVpr Vaping Master Verified Member ECF Veteran

    Supporting member
    Aug 24, 2013
    Hollywood (Beach), FL
    Another interesting test. It never ceases to amaze me though how often observing the obvious makes for the opposite conclusion. In fairness, how we wick can be a greater factor in how the media responds. I've never observed rayon to have better capillary action or permeability than KGD. It's apparent flow advantage here is pretty evident (as well as retention). Rayon can dry out faster than cotton and this could be an advantage given enough juice supply. Why I think ample wicking (tight under strain) of a pulled linear fiber wick likely does ensure that flow, provided no twisting which would choke it. Thinning the tails or supply of that however would seem to defeat the purpose.

    Thx for the visuals @gsmit1. Have a great vape.

    Good luck. :)
     
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  20. stols001

    stols001 Mistress of the Dark Nicotinic Arts Verified Member ECF Veteran

    Supporting member
    May 30, 2017
    Tucson, AZ
    I tried the on your side airhole test. Laid my vapes flat on tissue paper. There was enough leakage for me to go, "Oooh that's why paper gets messed up in my purse. Now, I close off airholes and ziplock bag.

    That amount of leaking isn't really leakage except yeah, it is. It doesn't mean you are doing anything wrong, it just means any ole thing with holes and juice is gonna at least MIST a little I mean have you operate a colander?

    I will say, my rayon "mist" approaches NOTHING like the "misty rayon" leak. It's really hard to enjoy an RTA when it is leaking so much your hands are sticky and like you see the juice level decreasing. Makes it hard to focus on ah, flavor you are busy going "I AM THE incompetent one."

    I have felt like that all freaking day this stupid up and down with this illness which HOLY GOODNESS and all that, if this is :"some random virus" I'd really like to meet COVID in the FLESH and kill it dead. Gah.

    Anna

    Anything could happen. Volcanoes could erupt OH if only the giant caldera that is Tucson would erupt for example. AFTER we sell our house and recoup some DANG loss.

    I hate everything. But yes I would have NO idea how thoroughly or not to wick something like that and am 100% sure I would mess it up the first fifty times. I am happy with mah rayon.
     
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