Thanks for your comments
@tchavei. Thought I'd drop in here before things got too far along (thanks for the shout
@Katya). Think I've been one of many major proponents of safe building methods for Kanthal on ECF for quite some time. So the thread you referred to @tchavei…
The end of microcoils? | E-Cigarette Forum…was of some interest to me. Dr. Farsalinos' suggestion that we shouldn't torch or
dry burn wires implicated Kanthal along with other more recently popular wire types. Many objected to both generalizations which I now believe was unintentional. I agree with one, strongly disagree with the other.
Kanthal is resistance wire intended for use as a vaporizing element. It heats air we breath in an assortment of applications from space heaters to toasters, ovens, heat pumps…the list is long. It was conceived and intended to be oxidized as it exudes an alumina oxide layer (ceramic) which insulates the wire against ferric corrosion. For us that's excellent news as it isolates the juice media we vape from the underlying metals. But since the advent of the contact microcoil even more good news is that this isolating layer is also an
insulating barrier which converts contacting wires into insulated wires (not a short). The temperatures necessary are quite lower (<1400F) than those used in torching to form coils (>1800F and higher) which actually may compromise the material's surface (the very layers we're trying to create). As
@tchavei mentioned oxidizing layers can be observed with low voltage pulses through several transitions of color. Contact coils so prepared are marvelously stable, powerful and run cooler (vaporizing juice at a higher rate by letting off power to liquid more effectively due to their more uniform temperature).
Contact coils are a very easy and dependable wind to make and insulating them a breeze with a proper approach to consistency and by developing an understanding of how to effectively develop the oxidation. I've been for a number of years an advocate against torching Kanthal then as it's really not needed. Happen to have a little experience accomplishing this and I'm pleased to assist all I can help get to a great vape asap. Look me up or my posts. Have a go.
Good luck.