Dry burning issue.

[Bonskibon]

I make very simple coils for my Toptank RBA with 28g wire. Nothing fancy, just single wire wraps. I have to rewick often because the juice I like is a gunker even though the cotton is fine, the coil gunks. I find that when I dry burn a few pulses on a new build I'm good and can rewick, but if I run it underwater to clean after a dry burn it becomes junk and just looses its taste. It almost seems like it rusts or something and the coating on the wire is completely gone. I can taste the difference and tastes burnt to me.

I use good quality wire that is common among the forum and wondering if there is a better way to clean my coils otherwise I'm having to change the build on my RBA more often than I like to.

EDIT: I'm using kanthal wire.

 

[93gc40]

What's in your water?

What kind of wire?

Could be that rust is the coating you want... just stained. If it's flaking wire I say dry burn at lower temperature and get different wire.

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[Bonskibon]

Forgot to mention.... Kanthal

 

[crack2483]

I get the same with kanthal and Ni80. Obviously it takes longer with a clearer juice but once dry burned it doesn't taste the same or as long. I end up making.new coils at least once a week.

*I make 0.5 ohm simple micro coils
3mm diameter usually 10 wraps. (Dual coil)

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[Flavored]

Either blow the ashes off or get a can of air. Keep pulsing and blowing until you only see the coil glowing when pulsing (ie - no "cinders" in between wraps). Don't fret over giving a good healthy second or two long pulse, depending on the watts you pulse with.

I do this after rinsing under hot water (and removing the wick, of course). I don't rinse after the dry burn. The coil will darken with use, but I get several re-wickings between builds this way.

 

[Bonskibon]

Either blow the ashes off or get a can of air. Keep pulsing and blowing until you only see the coil glowing when pulsing (ie - no "cinders" in between wraps). Don't fret over giving a good healthy second or two long pulse, depending on the watts you pulse with.

I do this after rinsing under hot water (and removing the wick, of course). I don't rinse after the dry burn. The coil will darken with use, but I get several re-wickings between builds this way.

Going to give that a try, thank you.

 

[93gc40]

Either blow the ashes off or get a can of air. Keep pulsing and blowing until you only see the coil glowing when pulsing (ie - no "cinders" in between wraps). Don't fret over giving a good healthy second or two long pulse, depending on the watts you pulse with.

I do this after rinsing under hot water (and removing the wick, of course). I don't rinse after the dry burn. The coil will darken with use, but I get several re-wickings between builds this way.

Almost exactly what I do...

Really if your going to dry burn anyway there's no reason to wash the coil..... you might want to wash the tank fine just do it before you dry burn and rewick....

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[Bonskibon]

Thanks guys. I'm thinking the dry burning and sizzling it water a couple times is what's wrecking my coil. I'm going to try other methods and see if I can get better results. Will do a dry burn and use condensed air to blow out gunk and then do a rinse in water when the coil is cold and gently clean like that.

 

[Flavored]

Oh, yeah, I didn't understand that you were doing the quenching thing. Rapidly quenching hot metal changes it, sometimes good, sometimes bad. Google is your friend.

 

[Bonskibon]

Oh, yeah, I didn't understand that you were doing the quenching thing. Rapidly quenching hot metal changes it, sometimes good, sometimes bad. Google is your friend.

Yeah, I did try googling it, but couldn't find the right wording to get results I was looking for.

 

[Flavored]

I'm no metallurgist, so I'm not going to comment on the merits of doing this to a Kanthal coil except to say you've been doing it with bad results, others (including myself) haven't and are getting better results.

Quenching - Wikipedia