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Why are my Kanthal A1 coils turning black in 1 day?

Discussion in 'New Members Forum' started by Somberness, Mar 30, 2020.

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  1. Somberness

    Somberness Full Member

    Feb 27, 2020
    My coils are turning pitch black in less than one day?

    My mod is 1-30W and I'm using Kanthal A1 26ga at 0.6-0.9Ω mostly vape it between 12-18W have even tried 19-25W

    I'm using the DigiFlavor Siren 22 GTA RTA on my Segelie Mini 18650 battery mod.


    My wicking is between so tight it pulls the coil and just slides with no friction when you Slade it back and forth

    Do I need a different ohm like 1.0-2.0Ω?
     
    • Like Like x 1
  2. Mordacai

    Mordacai Ultra Member ECF Veteran

    Jan 16, 2019
    UK
    Hello @Somberness, could you tell us what liquid and wicking you're using please.
     
    • Like Like x 2
  3. stols001

    stols001 Mistress of the Dark Nicotinic Arts Verified Member ECF Veteran

    Supporting member
    May 30, 2017
    I actually think it may have something to do with the tank itself. I use stainless or kanthal and the coils turn black fast, and I wick with nylon and it is still my "most often" wicked tank.

    It could be very sweet juice I guess but I've used very mild DIY in there, and still had it happen for the most part. I am not sure if the size of the coil matters so much.

    I could also be completely incorrect, but the coils do get dark fast, and need rewicking often. I have found using less power to be helpful so maybe you want to try at TC coil in temp mode and see if it helps? It's just a thought....

    Still one of my favorite RTAs. Now that I think about it, seemed less prevalent when I was using the 22s than the 24mm versions which makes absolutely no sense. That RTA is a mystery though I'm not sure how many folks are actually still using it.

    Anna
     
    • Like Like x 1
  4. vaper1960

    vaper1960 Vaping Master ECF Veteran

    Apr 24, 2019
    California, US
    Just curious... why are you checking the coil every day? Dry hits, bad taste, not enough vapor?
    More details would help... coil ID (inside diameter) and how many wraps? When you re-wick, how does the wick look?
     
    • Like Like x 1
  5. vaper1960

    vaper1960 Vaping Master ECF Veteran

    Apr 24, 2019
    California, US
    Nylon??? Did you mean rayon?
     
    • Like Like x 1
  6. stols001

    stols001 Mistress of the Dark Nicotinic Arts Verified Member ECF Veteran

    Supporting member
    May 30, 2017
    Indeed I do. The damn Depakote word substitution begins. I really DO not know what to, sorry. Rayon. Yes. Rayon.

    Anna
     
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    • Love Love x 1
  7. G and C

    G and C Super Member Verified Member ECF Veteran

    Jun 3, 2014
    California
    My initial suspect would be the juice itself. At that wattage, I would tend to think that something in your juice is gumming things up and turning the coil black. I have one juice that I make on a regular basis that does the same, although not in a single day. But it's a very sweet juice, by far the sweetest I use, and it happens every time.

    What juice are you using?
     
    • Agree Agree x 2
    • Optimistic Optimistic x 1
  8. vaper1960

    vaper1960 Vaping Master ECF Veteran

    Apr 24, 2019
    California, US
    I agree about the juice (I had one pre-made juice that would kill my "drop-in" coil super fast... one of the flavors in it was brown sugar... I think it actually had real brown sugar in it)
    @stols001 , now worries Anna (word fart is no problem, but the day you actually do use Nylon for a wick I will start worrying)... and please tell me you haven't been vaping red wine again LOL
     
    • Funny Funny x 1
  9. vaper1960

    vaper1960 Vaping Master ECF Veteran

    Apr 24, 2019
    California, US
    Just watched a video of your mod. It has some "memory settings" Not familiar with that but maybe this will help:
     
    • Like Like x 1
  10. bombastinator

    bombastinator ECF Guru Verified Member ECF Veteran

    Sep 12, 2010
    MN USA
    Mine have always done this. I just dry burn em and don’t worry about it. Makes me wonder if I’m doing something wrong.
     
    • Like Like x 3
    • Agree Agree x 1
  11. vaper1960

    vaper1960 Vaping Master ECF Veteran

    Apr 24, 2019
    California, US
    • Agree Agree x 1
  12. UncleJunkle

    UncleJunkle Ultra Member Verified Member ECF Veteran

    Nov 29, 2010
    Been a while since I vaped really dark or really sweet juices, but I remember them gunking up my coils really fast with black gunk, even at wattages under 18W.
     
    • Agree Agree x 2
  13. Coyote628

    Coyote628 Ultra Member ECF Veteran

    Sep 16, 2017
    Its totally normal but if the wicking turns black after one day, then something isnt right. And hey, bomb, good to see ya again.
     
    • Like Like x 1
  14. stylemessiah

    stylemessiah Ultra Member Verified Member ECF Veteran

    Apr 16, 2015
    Sydney, Australia
    Those RTA's were insanely popular at the time, like Lemo 2 collectors like me that was a tank that people sometimes bought 4 or more of...

    So i vote juice or cheap kanthal wire

    Whack some unflavoured (50/50 PVG/VG & nic) through it and if its still happening...if it still happens, im guessing wire, because unflavoured will keep a coil going for 6 weeks +, i only change mine when they just start going coffee brown....when theyre black theyre not working efficiently, to me..i use TC, this is what ive always done. I never let them go black.

    Also consider changing to SS 316L, its a dual mode wire - normal VW/VV and TC...its far better than kanthal, i havent had kanthal in my house in nearly 4 years
     
    • Like Like x 1
  15. Punk In Drublic

    Punk In Drublic Vaping Master ECF Veteran

    Aug 28, 2018
    Toronto, ON
    Resistance will have no bearing on how gunked your coils will get. The gunking comes from certain ingredients within your juice carbonizing. Sweeteners, in their many different compositions is is one of the culprits. But there could be others. What is unknown is the temperatures at which causes this carbonizing. Sucralose may carbonize more at a certain temperature than frutose, as an example.

    The temperatures needed to vaporize juice range between ~320°F up to around 450+°F, depending on the composition of your juice (props to @mikepetro for his tests). We set our power to reach these temperatures depending on the coil we use. Lower mass coils require less power than higher mass coils - but all operate within this temperature range. There are exceptions for those who enjoy a hotter vape, but below 320°F does not produce much vapor at all. The sweeteners, or specific ingredients used within certain e-juice could and does carbonize within these temperature range.

    If your juice contains an ingredient(s) that is prone to carbonizing, then all coils regardless of their metal will gunk up. The amount of these carbonizing ingredients within the juice will dictate how quickly the coil gunks. With commercial juice we have no idea what ingredients are used. With DIY, and a little research into the flavourings, we can avoid ingredients that are more prone to carbonizing. For myself, I've just grown to accept it. There are juices that I have consumed that can be referred to as coil killers - but I enjoy these juices and accept they just come at a slightly higher cost of operation over ones that do not gunk as quickly.
     
    • Agree Agree x 3
    • Useful Useful x 2
  16. englishmick

    englishmick Vaping Master Verified Member ECF Veteran

    Supporting member
    Sep 25, 2014
    Naptown, Indiana
    Yeah, I've got one of those juices. Marzipan vanilla. Very sweet and dark colored. Coils and wicks turn black in no time but I love it so I put up with the extra work. I have some Crème De Menthe juice that will run for a month or more and still look clean.

    That might be OP's problem.
     
    • Like Like x 1
  17. DaveP

    DaveP PV Master & Musician ECF Veteran

    Supporting member
    May 22, 2010
    Central GA
    Somberness, Some juices carbonize and gunk up wicking quickly. The clearer the juice the better it is for wick life (for the most part with some exceptions). Sweet juices tend to carbonize quickly.

    That said, there's a sweet spot for wicking. If it's too tight in the coil you'll get slow juice wicking. If it's too loose you can get hot spots where the wick isn't snugly against the inside of the coil. For me, a good wick is snug when I install it and I twist it as I pull it through to make it move into place as I pull it through the coil. Then, I pull it back and forth to size it to the coil. When it's into place you should feel slight resistance as you try to pull it back and forth, but not so much as to bend the coil legs when you do.
     
    • Like Like x 1
  18. vaper1960

    vaper1960 Vaping Master ECF Veteran

    Apr 24, 2019
    California, US
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