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Ok, I have some additional information on the Joyetech Delta II wicking materials. Let me reiterate…
First, let me clarify why I did this. You asked. 🙂
I’m not a materials scientist. I’m not making any claims as to whether these materials are good or bad, safe or not. That I have to leave up to you to decide for yourself.
I’m just providing the information many of you requested, as I’ve received it from them.
According to Joyetech…
For the inner material that you were able to break apart. It is a High Temperature Non-Woven Fabric. The material is Man Made Mineral Fiber (MMMF). MMMF is classified into 3 types. We are using the Continuous filament glass fibers.
Material Testing Reports – PDF Files:
Size of the fibers… click the thumbnails for the full size images…
For the outer material, the long strip, it is a Non-woven wick (Organic Man-made Cotton). Composition molecular formula = (C6H10O5)n. Application = Cosmetic Grade.
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I asked a few follow-up questions…
Q) So the non-woven fabric is the material that sits next to the coil and the non-woven cotton is the material that wraps that correct?
A) Yes you are correct, since the High Temperature Non-Woven Fabric has a higher temperature resistance than Non-woven wick (Organic Man-made Cotton). We wrapped our coils with a thin piece of High Temperature Non-Woven Fabric to protect the Non-woven Organic Man-made Cotton wick from being damage from dry burns.
Please note: I believe that it is important for the public to know that the High Temperature Non-Woven Fabric is a very small piece that is placed there for dry burn protection. We did not add a extra piece of material for no reason. The primary wicking material is the Non-woven wick (Organic Man-made Cotton).
Q) Although I see the test reports on that fabric, you’re not telling me what it is. Is it a ceramic fiber material?
A) No, the High Temperature Non-Woven Fabric is made of Man Made Mineral Fiber (MMMF). MMMF is classified into 3 types. We are using the Continuous filament glass fibers. FDA currently doesn’t have any standard for ecig wicking material. Thus the Intertek 2.PDF report had to use the FDA policy guideline for Ceramic Ware to test for Leachable Lead and Cadmium Content.
Q) It appears to have the same properties and the same material as the original Aspire Atlantis coils. Do you know if that’s the case?
A) No, I assure you that is not the case. Please refer to the attachment “Size of fibers” JPEG. You can see the test results that the fibers are well above 5 microns, 9+ microns, nearly twice the established safety threshold. Also the older Atlantis Coils were using the ceramic fiber as their primary material. The LVC is only using a very small piece of MMMF to protect against dry burn protection.
Q) I’ve heard many comments about people being concerned with the material flaking/breaking off and getting into their lungs. Can you comment on that?
A) In your Delta 2 Review video you even mentioned that “If you keep the coil head really wet. I don’t think you will have problem with this material flaking off“. I completely agree with you. I personally feel very safe to use my Delta 2. I can understand your concern when viewing your video where you showed the fibers crumbling in your fingers, but now that it has been shown that the fibers are nearly twice the size of the established safety limits of 5 microns or less there should be no reason to fear using the LVC Atomizer Head.
Pretty much this is the same material as the silica wick that is still being used by all the manufactures. The only difference is that it is not braided into a wire form, instead it was made into a fabric form. Please take a look at the attachment “Size of Fiber.jpg”. The smallest particles are nearly twice the size of the established safety limits, more than 9 microns in size.
Q) Why was the community told the coil heads were Japanese Organic cotton in the first place?
A) The organic cotton information on the website was changed prior to launch of the Delta 2. The main reason why the Japanese Organic Cotton were not used on the final production model is because natural organic cotton is not easily formed for mass production. It is very easy to use for an individual to make a single build at prototyping stages.
So there it is folks. That’s what I currently have for you.
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