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Ryedan

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Question for those who say wicking material doesn't affect coil gunking -

I've been using the same DIY as my ADV for more than 1.5 years. Always used KohGenDo for wicking until about 8-10 months ago when I switched to rayon. I didn't change how much eliquid I vaped per day, the tank I was using, nor the wattage I vaped at. Yet my coils didn't "gunk up" as quickly using rayon as they always did using cotton. With cotton I could go 2 full days. With rayon it was 3-3.5 days. The only variable that changed was my wicking material. So, what caused the difference, if it was not the change in wicking material?

I've seen different people have different outcomes with cotton vs Rayon. I tried Rayon back when the craze started. I set up the same atty identically with new coils, put them on similar devices and vaped them side by side with the same juice until they needed cleaning. In this case it was two Mutation X drippers on mech mods. My ADV juice was at the time on the sweet side and dark, so it was pretty gunky. The gunk-up performance was so similar between them I consider them equal.

But (there is always a 'but' in these things :)), there are more factors at play here. The big one IMO is that Rayon needs to be set up different in the build compared to cotton. When I started using Rayon I experimented with different amounts of it in my coils and settled on what vaped best for me with no consideration to how long it lasted. I did the same when I started using KGD. I think I use more cotton in my coils than most people, I found pretty snug works best for me. That is how I set up the atties I used. There could be a lot variability in gunking performance here depending on how things are set up but I never experimented with this. There was no point, I wouldn't settle for less vape quality to get more vape time per cleaning session.

Another thing to consider. The Mutation X RDA is a relatively large dripper with a lot of airflow that I was vaping DL at 35-45 watts, and I was using it with reasonably low heat flux builds, so the wire temperatures were always on the cool side. That could have been a factor.

These days I vape RTAs mostly at around 15 watts on warmer builds using KGD, though I occasionally put in Rayon just for S & G's. I still find no noticeable difference between Rayon and KGD in these setups.

Both make really good wicks for me and I'm comfortable using each. The only time I wouldn't consider Rayon is when I use thinner wire which is not stable enough to allow me to get enough Rayon into the coil without ruining it, like in my Aqua V2 using 30 gauge.

In the end, as always, whatever works for each of us is best for us :thumb:
 

Ryedan

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Question for those who say wicking material doesn't affect coil gunking -

I've been using the same DIY as my ADV for more than 1.5 years. Always used KohGenDo for wicking until about 8-10 months ago when I switched to rayon. I didn't change how much eliquid I vaped per day, the tank I was using, nor the wattage I vaped at. Yet my coils didn't "gunk up" as quickly using rayon as they always did using cotton. With cotton I could go 2 full days. With rayon it was 3-3.5 days. The only variable that changed was my wicking material. So, what caused the difference, if it was not the change in wicking material?

I've seen different people have different outcomes with cotton vs Rayon. I tried Rayon back when the craze started. I set up the same atty identically with new coils, put them on similar devices and vaped them side by side with the same juice until they needed cleaning. In this case it was two Mutation X drippers on mech mods. My ADV juice was at the time on the sweet side and dark, so it was pretty gunky. The gunk-up performance was so similar between them I consider them equal.

But (there is always a 'but' in these things :)), there are more factors at play here. The big one IMO is that Rayon needs to be set up different in the build compared to cotton. When I started using Rayon I experimented with different amounts of it in my coils and settled on what vaped best for me with no consideration to how long it lasted. I did the same when I started using KGD. I think I use more cotton in my coils than most people, I found pretty snug works best for me. That is how I set up the atties I used. There could be a lot variability in gunking performance here depending on how things are set up but I never experimented with this. There was no point, I wouldn't settle for less vape quality to get more vape time per cleaning session.

Another thing to consider. The Mutation X RDA is a relatively large dripper with a lot of airflow that I was vaping DL at 35-45 watts, and I was using it with reasonably low heat flux builds, so the wire temperatures were always on the cool side. That could have been a factor too.

OTOH, these days I vape RTAs mostly at around 15 watts on warmer builds using KGD, though I occasionally put in Rayon just for S & G's. I still find no noticeable difference between Rayon and KGD in these setups.

Both make really good wicks for me and I'm comfortable using each. The only time I wouldn't consider Rayon is when I use thinner wire which is not stable enough to allow me to get enough Rayon into the coil without ruining it, like in my Aqua V2 using 30 gauge.

In the end, as always, whatever works for each of us is best for us :thumb:
 

CMD-Ky

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+1 on Rayon in thinner wires. I moved to 26 and 28 gauge wire for that reason.

I've seen different people have different outcomes with cotton vs Rayon. I tried Rayon back when the craze started. I set up the same atty identically with new coils, put them on similar devices and vaped them side by side with the same juice until they needed cleaning. In this case it was two Mutation X drippers on mech mods. My ADV juice was at the time on the sweet side and dark, so it was pretty gunky. The gunk-up performance was so similar between them I consider them equal.

But (there is always a 'but' in these things :)), there are more factors at play here. The big one IMO is that Rayon needs to be set up different in the build compared to cotton. When I started using Rayon I experimented with different amounts of it in my coils and settled on what vaped best for me with no consideration to how long it lasted. I did the same when I started using KGD. I think I use more cotton in my coils than most people, I found pretty snug works best for me. That is how I set up the atties I used. There could be a lot variability in gunking performance here depending on how things are set up but I never experimented with this. There was no point, I wouldn't settle for less vape quality to get more vape time per cleaning session.

Another thing to consider. The Mutation X RDA is a relatively large dripper with a lot of airflow that I was vaping DL at 35-45 watts, and I was using it with reasonably low heat flux builds, so the wire temperatures were always on the cool side. That could have been a factor.

These days I vape RTAs mostly at around 15 watts on warmer builds using KGD, though I occasionally put in Rayon just for S & G's. I still find no noticeable difference between Rayon and KGD in these setups.

Both make really good wicks for me and I'm comfortable using each. The only time I wouldn't consider Rayon is when I use thinner wire which is not stable enough to allow me to get enough Rayon into the coil without ruining it, like in my Aqua V2 using 30 gauge.

In the end, as always, whatever works for each of us is best for us :thumb:
 

DebbieNY

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Another factor that people forget to mention with Rayon is that it needs to be twisted (following the direction of the wire, rotating the Rayon as you go) when pulling it through, so that the individual fibers do not catch on the wire and snag/pull the fibers out (since it needs to be snug), resulting in an uneven wick (fuller on one shoulder of the coil than the other).

Twisting it this way (when the fibers get wet and condense/shrink upon itself) it will NOT leave a gap between the coil and the Rayon. The fibers near the thicker shoulder seem to block the flow of liquid through those snags on that side, too... No bueno. I made this mistake countless times and couldn't figure out why my results were different than most everyone else's, until I saw mention of it once or twice. The coil is burning where that gap is (not holding enough liquid against the coil to cool it). MANY FORGET TO MENTION THIS PART and it's IMPORTANT.
 
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JCinFLA

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Whereas for me it's opposite.. I get dry hits with rayon, and never get them with JOC..(remembering that Japanese Organic Cotton, name brand Koh Gen Do, which I am talking about is different than plain organic cotton)

From my earlier post: :)

Always used KohGenDo for wicking until about 8-10 months ago when I switched to rayon.

Maybe it does have to do with our vaping style, who knows? I'm definitely a Tootle Puffer (@ <9W), with coils 1.0-1.8ohms, and I don't vape DL nor MTL. I pull vapor in usually for about 3.6-4.3 seconds, to fill my mouth and part way down my throat. Then I exhale through my nose and/or mouth. It's always gotten me my "nic hit" just fine that way.

Every now and then just for S & G, and/or to amuse friends who are "it's the clouds bro" type...I'll do a DL hit, but not very often. They are amazed at what I can pull in at my puny wattage, using above ohm coils, etc., but...they still laugh a lot, too. :D

ETA: I have always wicked my coils with the rayon like @DebbieNY says above. So maybe that's made a difference. IDK!
 
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Opinionated

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From my earlier post: :)



Maybe it does have to do with our vaping style, who knows? I'm definitely a Tootle Puffer (@ <9W), with coils 1.0-1.8ohms, and I don't vape DL nor MTL. I pull vapor in usually for about 3.6-4.3 seconds, to fill my mouth and part way down my throat. Then I exhale through my nose and/or mouth. It's always gotten me my "nic hit" just fine that way.

Every now and then just for S & G, and/or to amuse friends who are "it's the clouds bro" type...I'll do a DL hit, but not very often. They are amazed at what I can pull in using my puny set-ups, but...they still laugh a lot, too. :D

Yeah, I prefered the airflow of the Kayfun 5 (for example) set to wide open, or the Hastur wide open..

I built a 1.2 ohm coil with 26 gauge kanthal wire (around 7 wraps of 3mm ID if i recall correctly) for a nice cooler vape at 13.5 watts..

I'm definitely a restricted lung vaper - not a DL, but I did take nice long pulls.. and had a tendency to chain vape..

We definitely have different styles..

but it's cool... just a theory any way.. lol.. we will likely never know for certain..
 

Mike P

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what kind of coils and atomizer are you using?????

I was dry burning my coils every three days when I started using RDA's and as it turned out the coils were just junk. It was the Demon Killer 8 in 1 pack, cheap garbage coils.

I had better luck after switching to plain round wire nichrome, they lasted longer and produced better flavor. still having to dry burn once a week...

finally I discovered these
Coilology Performance 7-in-1 Prebuilt Coils Set
which are super high quality for only 12 bucks, its an amazing deal. I have not been able to gunk up these coils to the point of being dark in color, no matter what juice I use. I'm doing a dry about every 3 weeks and they only have a very faint browning on them at that point with no flavor loss. I'm using the dead rabbit and nudge 24 RDA's.

airflow is key as well. without proper airflow the juice is going to cook on the coils.
 

mcclintock

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    When I used Toasted Marshmallow at 6-7% flavoring, I couldn't even get 24 hours out of my coil. The gunk was thick and the wick gray and nasty. Maybe something else also changed, but later using 3% of the same flavoring I found no unusual tendency towards gunking whatsoever. I think that at 3% the flavoring vaporizes with the ejuice, but at 6% some of it stays behind and carmellizes.
     

    bwh79

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    Ah well, I stuffed a good arm's-length of Graham into a ziplock bag and mailed it off to OP. Hopefully he will let us know, when he's tried it, if it helps at all. I know coil gunking/crusting is likely a sweetener issue, but it could also be related to juice flow, which rayon might help, at least a little.

    900 feet???? Unless you own an actual beauty salon the FDA could misconstrue that as intent to sell. ;)
    I figure if I wick once a day, and take one day off a week, I might go through a foot of it per week (2" per day, so maybe small dual coils or a larger single-coil). But I'll have a very hard time keeping that up for 900 weeks in a row so, yeah, maybe I overdid it a little. For less than $20, though, and I was already going near the Sally's anyway, and now I pret'near absolutely have a lifetime supply.
     

    bwh79

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    When I used Toasted Marshmallow at 6-7% flavoring, I couldn't even get 24 hours out of my coil. The gunk was thick and the wick gray and nasty. Maybe something else also changed, but later using 3% of the same flavoring I found no unusual tendency towards gunking whatsoever. I think that at 3% the flavoring vaporizes with the ejuice, but at 6% some of it stays behind and carmellizes.
    That's a very good point, too. @Edwin Betz, you might try diluting the flavor % of your liquid, by mixing it with an un-flavored liquid in the same nic and pg/vg amounts as you're using now. If you mix in equal parts, the result will be a liquid with the same nic and pg/vg, but half the flavor amount. This may even be an improvement, as some retail liquids are over-flavored to the point where they actually overload your palate, giving a "muted" flavor, and sometimes cutting the flavor amount brings out even more flavor than it had to begin with.
     
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    ilporcupine

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    Twisting it this way (when the fibers get wet and condense/shrink upon itself) it will NOT leave a gap between the coil and the Rayon. The fibers near the thicker shoulder seem to block the flow of liquid through those snags on that side, too...
    Has anyone tried dampening the rayon before insertion? Just a thought.
     

    Ryedan

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    Another factor that people forget to mention with Rayon is that it needs to be twisted (following the direction of the wire, rotating the Rayon as you go) when pulling it through, so that the individual fibers do not catch on the wire and snag/pull the fibers out (since it needs to be snug), resulting in an uneven wick (fuller on one shoulder of the coil than the other).

    I don't always twist Rayon, it depends on the wire gauge I'm using. With 27 - 24 gauge I've found I can leave that step out. With 28 gauge I almost always do it.

    Then again I twist KGD sometimes also. Like I said earlier I think I stuff more of it into a coil than most people do. It mostly depends on the wire I'm using. I don't always remove the outer KGD layer either and then I'll almost always twist it.

    I solve the issue of uneven wick tails and shoulders by fluffing out the wick on either side of the coil, specially the wick on the side I put in first. That gets compressed on insertion and stays a bit compressed after it's pulled through. It's not critical in some atties like the DoggyStyle or the Aromamizer RDTA, but much more so in others like the Rose V3.
     

    Ryedan

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    Has anyone tried dampening the rayon before insertion? Just a thought.

    I've tried that with both cotton and Rayon. I don't do it anymore. It is a worthwhile method, but I've found I can get things to vape just as well without that mess :)
     

    stols001

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    I've done so before when having a bad day. It works fine, but it is indeed messy. I usually use ejuice to do it not distilled water and yes, it can get, uh, messy. I rarely do, occasionally I'll wet the end I've twisted up if I'm having a hard tine getting it inserted with water. Both methods can help. I If you wet the rayon, you'll need a hair less as rayon shrinks when wet, another reason I don't do it all the time, since I kind of kinesthetically "know" what's enough rayon now when dry.

    But, you can.

    Anna
     
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    Alter

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    You have to twist the rayon and twist following the rotation of the coil wraps. Rayon pulls very easily and that pulling through the coil your thinning out the material inside the coil without knowing it leaving deceptive looking bulky tails with not enough material inside the coil leading to have breakin taste. Then of course you have to back twist so the fibers are straight in the coil. Rayon fibers have to be set nice and straight from the end of the coil down to the juice channel/cup, so rabbit ears then stuffing rayon into the chimney is wrong way to wick. A properly wicked rayon build has NO breakin taste so if you get taste then its wicked wrong.
    I do agree with what I read before about thinner wire and rayon. Back when I was building protanks using 32 gauge(1.6-1.8Ω) the rayon didn't perform like it should leading to quickly burning out and I never figured out why. Began using 30 gauge with a bit larger ID and the rayon did work better but still had to use hemp fiber in my PT's to work good. 30 and 32 gauge wire looses its strength after a couple rewickings so trying to insert rayon into those builds just became frustrating with the coil distorting so went to 28 gauge then onto clapton coils and rarely make a single wire build anymore. Today its 29/34 rayon clapton in a STM that is 1.4Ω, easy on the batts and produces mighty fine cloudz.
     
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