I've been playing with Rayon for a few weeks now. I've now converted every single topper I own over to Rayon, that's how much I love the stuff.
I've got it in Kayfun's, Gennies, my Reo, Dripper - if it needs a wick it's been "rayonised"
Twisted kanthal coils, Mundys magic ribbon builds, rayon cloud builds - it's so versatile it really has surprised me - I sound like a real fanboi
When I was running cotton in most of my toppers, 8-10 watts was where I found I got the best flavour and vapour for my tastes. With rayon it's up at 14 watts now.
With a Kayfun build, I typically start with a 1.5 - 2.0 mm micro coil around 1.4 - 1.8 ohms. Feed the rayon through, so that there's a fair bit of resistance. But make sure the rayon isn't twisted in the coil, the fibres need to be as straight as possible. Trim the tails first to about 10mm. Juice them up, then thin out the wick tails into a V shape. The wick needs to be thicker at the coil than where it contacts the base. As others have said, don't fold over the wick tails onto the deck, they only need to run vertically down the sides. The tip of the V wick should just touch the horizontal juice channel. Fit the chimney and make sure you can still see all of the horizontal juice channels.
That's how I do it anyway
My first rayon build has gone through 50ml or so of juice. 50/50 mix, but it's a dark coil gunking juice, shows no sign of needing to be changed yet. It can handle chain vaping and plenty of power.
Even in the tiny dripper I've got, it can now take 12 drops at a time rather than 6 drops on cotton.
All my NT juices taste sweeter, fuller and denser, it's the most saturated vape I've had so far.
I love rayon
