Rayon wick, better flow, flavor, saturation and Nic Hit!

[jakematic]

But nudging the wick down you can see there's not enough outward pressure from the wick to evenly contact the coil

Have had that happen too.
Very easy to fix on my BF atty, not so much on an R91.

May go back to bigger ID coils for awhile until I can get the density nailed.
Especially with the smaller coils staying hotter and sizzling a bit after releasing the fire button...

Boba's / Gambit mix doesn't do any coil any favors though

 

[JeremyR]

That's probably the biggest down-side to using rayon -- figuring out how much and getting it right repeatably. I've been using it for a couple of months now and still don't always get it right. Here's a build I tore apart yesterday:

It vaped fantastic for one tank, but started tasting burnt not long after a refill and it was downright intolerable before the refill was empty. Looking at it, it seems fairly obvious to me that the burnt taste was coming from the center of the coil, which wasn't getting any juice due to the wick having become clogged. Yes, I was running a dark juice known for clogging wicks (mostly Bobas with a little bit of other stuff mixed in).

Anyway, although I love rayon, it isn't the easiest material to get right. That's no biggie in a bottom feeder where it's trivial to dry-burn and re-wick at any time, but in a KF it can be a bit of a bother.

Re: re: my symptom post above..-

My initial thought was, it seems like the wick is clogged..?*? Wth, but I'm using same juice as always.. It actually wasn't clogged through it seemed.. The internal wick pressure on the coil was too low. Causing the dryish hits. This was exasperated when I ran the dripper dry the first time on this wick, after that it lost wick pressure because the density was slightly low. Really just dry hits from there without lowering the power considerably. I was able to just pull the larger wick tail in and cure it for now, vaping fine again.

 

[JeremyR]

Have had that happen too.
Very easy to fix on my BF atty, not so much on an R91.

May go back to bigger ID coils for awhile until I can get the density nailed.
Especially with the smaller coils staying hotter and sizzling a bit after releasing the fire button...

Boba's / Gambit mix doesn't do any coil any favors though

The key is once you get a good one - leave it in there as long as possible.

 

[Wow1420]

The key is once you get a good one - leave it in there as long as possible.

And that seems to be a good long time. I haven't really had to re-wick my kayfuns except for the one I accidentally ran too dry. I have several going, use light flavors and don't run through a huge volume of liquid. So my rayon wicks are doing the energizer bunny routine, just keep going and going and going....

 

[bsoplinger]

That's probably the biggest down-side to using rayon -- figuring out how much and getting it right repeatably. I've been using it for a couple of months now and still don't always get it right. Here's a build I tore apart yesterday:

That's exactly where I was when I started using rayon. Great initially then sudden drop off then nasty burnt taste. One look at my wick, which looked just like yours and I knew I'd gotten it wrong. By that point in the thread there were pics of wicks with between 10-20ml of juice through them and looking brand new yet 5ml through mine and it looked like 2 day old cotton. So I just kept trying varying amounts and after every tank in the Kayfun I'd open the chamber and look until I finally got clean wicks. Luckily I waited on redoing my Fogger V4 until I learned. That wick is still going strong, 3 weeks now with at least one 3.5ml fill a day.

Sent from my Nexus 7 using Xparent Purple Tapatalk 2

 

[JeremyR]

Just thinking, who wants to try wicking their kayfun, ect., the way I wick my dripper? Separate 1/8-1/4 of the wick and cut the rest of the wick straight off at the point it bends down and just use the remaining small portion of the tail to go down the juice well?? Like how I did it in the video but for the kayfun.. Who's gonna try it?

 

[JeremyR]

And that seems to be a good long time. I haven't really had to re-wick my kayfuns except for the one I accidentally ran too dry. I have several going, use light flavors and don't run through a huge volume of liquid. So my rayon wicks are doing the energizer bunny routine, just keep going and going and going....

Yeah only reason I had to pull the centurion wick was i accidentally dry fired it for an unknown amount of time.

 

[slavkov]

JeremyR, please take a moment to look at my setup and give your opinion

 

[Aal_]

Just thinking, who wants to try wicking their kayfun, ect., the way I wick my dripper? Separate 1/8-1/4 of the wick and cut the rest of the wick straight off at the point it bends down and just use the remaining small portion of the tail to go down the juice well?? Like how I did it in the video but for the kayfun.. Who's gonna try it?

I tried that configuration on a Penelope. It works great. In my kayfuns I run along the edge of the walls and wick cut at an angle no problems. The density seems ok no dry hits.

 

[Aal_]

Re: re: my symptom post above..-

My initial thought was, it seems like the wick is clogged..?*? Wth, but I'm using same juice as always.. It actually wasn't clogged through it seemed.. The internal wick pressure on the coil was too low. Causing the dryish hits. This was exasperated when I ran the dripper dry the first time on this wick, after that it lost wick pressure because the density was slightly low. Really just dry hits from there without lowering the power considerably. I was able to just pull the larger wick tail in and cure it for now, vaping fine again.

Jeremy I don't get why Rossum had this nasty gunk? Is it related to wicking or that's bound to happen because of the juice?

 

[Aal_]

I twist a longer piece of rayon, and really twist the end thats going to be feed though the coil (snip that little excess that prevents it from going through) and just start feeding it through the coil. When the tip of it goes through, I use a really fine tip pair if tweezers to pull down the rest of it. When I have enough in the well, snip it off slightly above the coil. If you need some sort of pic let me know. Works like a charm in the origen!

I think my coils were too low on the origen and couldn't fit the tweezers down. I'll try wicking off atty as well if things go south.

 

[Tbev]

The wick tails on that kf pic look like they are quite a bit thicker than necessary, I'd angle cut them, long way, reducing them by 40 percent.

 

[Rossum]

Jeremy I don't get why Rossum had this nasty gunk? Is it related to wicking or that's bound to happen because of the juice?

The nasty gunk is inevitable with that juice. It's the distribution of said nasty gunk that shows a problem in this case. The fact that it's only on the ends of the coil and even beyond while the center of the coil is still pretty clean tells me that the wick clogged up badly stopped feeding juice toward the center of the coil. My sense is: Too much wick.

The wick tails on that kf pic look like they are quite a bit thicker than necessary, I'd angle cut them, long way, reducing them by 40 percent.

I'm scratching my head, wondering how that would have any effect on that particular problem? The wick was clogged at the entrance to the coil.

 

[slavkov]

Rossum, my post had nothing to do with your problem
Just wanted opinion on my setup

 

[Tbev]

JeremyR, please take a moment to look at my setup and give your opinion

This is the kf I am talking about. If it has that much wick it may dry hit dry hits will nastify your coil.

 

[Rossum]

This is the kf I am talking about. If it has that much wick it may dry hit dry hits will nastify your coil.

Ah yes, this is why we use QUOTE tags for context.

 

[dave the rave]

Built a Kraken dual coil with rayon yesterday... first time with the Kraken as it just popped through the door. Dual coiled it (0.2 mm former, a juice needle; 30 ga kanthal A1, 10 winds), poked the rayon through from topside and drew it in with tweezers till I could grab it then got it tight in the coil, pulled enough in to touch the base of the Kraken, repeat for other coil. Fiddly as heck. It came in at 0.6 ohms. Vape quality is very good, it drinks juice like it's been in the desert, at 20W on a Hana clone. Loads of taste and after a day of usage, it's not showing signs of deteriorating flavour like you'd get from a shrinking wick. Lovely stuff. A good Genny type build, better than the Aga T2 I did some weeks back. Recommended, if a bit fiddly!

 

[Tbev]

You just inspired me to dust off my favorite genny, I cut a piece of rayon at an angle super skinny, wound tight, fed it through the mounted coil to the bottom of the tank, name sure it wasn't tight in the hole, took 3 seconds, no tilt, vapes great running a parallel coil @0.5 0hm with reducer

 

[Dusty_D]

You going to make me dust off my DID and AGA-T now?!

Did 6 builds this morning. Re-coiled 3 KFL's to 1.3ohm using 28g on 3/32 (2.3mm) drill bit and also 3 drippers (Trident, Igo W3 & W6) to 1.2ohm single coils again using 28 g on 5/64 (1.98mm) drill bit. All wicked with Rayon.

Need to re-do the build on my Reo Grand with BF Era. See how that works. It's been put away for way too long.

 

[Tombie15]

So where can I purchase a small amount of rayon to test it out, without committing to an entire box?