Me personally, I would be cautious about any man made fiber. I've been studying Nextel for almost a year. I began with the scientific research done on the material going back a decade before its introduction in vaping. I am reasonably assured by the evidence that kilning as recommended and precisely articulated by 3M eradicates virtually any vestiges of residuals of any kind (vaporization) within the media. Furthermore, Nextel has an extraordinarily high heat resistance so that it's potential to
add to vaporization components is practically nill (unless abused). So to my perspective the question begs to be asked
is an alternative adding anything to this picture? Well for one what is rayon's contribution to longevity (wick life) or its proclivity to get singed or gunked up in vaporization. In other words, what does it bring to the table?
I use a lot of cotton. Many varieties. I'm liking the lower heat sensitivity of the directional fibers in KGD. And it's flow. I don't see that construction in rayon particularly. So I'm skeptical of accounts of its wicking. It's probably comparable to natural uniformly good quality cotton. Relatively directional in grain. Does it compress well to expedite flow? Skeptical there too.
However, it may yield some interesting taste benefits. Certainly many are saying. So no doubt I will test at some point.
Brook I'd be interested only in the lyocell rayon / Tencel material, only if the specific producer clearly defined the chemical process utilized excluded toxic chemistry (such as to suppress fuzzing). In a similar way that 3M adds
sizing to its insulation which subsequently must be removed by kilning. So any secondary process must be considered. And how do we do that consistently? Given rayon's characteristics if even benign processes implied some residual what would the removal or extraction of such entail? Boiling? Torching? Not likely. Just remember LBB applies, methinks.
It's bad enough that Nextel is single source. And yes if this thing takes off
we do need alternatives as a community. So it's a serious topic of interest to me. Let the research continue. We all need due diligence as individuals. We also need such alternatives. If you'd be so kind, I'd appreciate a sample. PM me for particulars. And thanks. I'm looking this morning and can't find stock. Two separate supplies of KGD enroute.
Good luck brook, think Tencel!
p.s. This is starting to resemble last Spring. Maybe a good thing!