MaxxFusion Burn tests coil temp test..silicone melt test..

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MahBohMan

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Jun 11, 2010
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I dissasembled 2 maxx fusion
cartomizers to figure out how they function, what burns and what doesn't, the operating temp of the coil itself, with juice on it and dry burn as well. I test the torch the wick with a lighter method, burn the filler, and take the silicone insulator on the battery end, and touch the coil with it, and yes it absolutely melts IMMEDIATELY if it comes in contact with the coil itself. I tried to melt it against the coil with a soaking wet wick, and a dry burn, both tests yielded the same result...a melted silicone insulator plug.

Now comes the interesting part. The coil is held in place simply by pressure. The silicone insulator plug at the battery end which keeps the positive and negative ends of the coil it what keeps the coil in place. One end of the coil is sandwiched between the inside of the silicone plug and the center contact, and the other is sandwiched between the outside of the silicone plug and the metal portion of the cartomizer which has contact with the threads and acts as a negative to return current back to the battery.

Now on to the coil temp test. I have a digital infrared thermostat which will accurately read temps up to 550 degrees F.

During a 6 second burn starting with a soaked wick and factory ejuice, the temp hit 280degrees. During a dry burn the coil temp was pushing 460 degreesF. The polyfill, if in contact with the coil will not catch fire, but it will immediately vaporize, and you WILL be inhaling it. Thats a FACT and its not a good one.

The protective inner air sleeve, which keeps the polyfiller material away from the coil does NOT burn. I attempted to destroy it with dry burning a coil over and over again, as well as with a lighter. If you have ever dissasembled one of your maxx fusion cartos and looked at the end which sits over the coil, and seen black or brown nastyness stuck to at, thats all that is, is nasty old juice deposits all jammed up in the end of the sleeve. This might trick you into thinking it is melting, but its not, just burn it with a lighter and you will see. It will crackle and pop like rice crispies, until its charred black but will wash off immediately after, revealing a clean like new looking inner air sleeve. This is good......as long as it is doing its job of keeping the polyfiller material off the coil...

The wick does not burn. Holding it over and directly in a flame does zero damage to it and if anything helps clean it nice nice.

Now being an electrician, I can say this much about the design of the coil leads being pressed against this particular silicone plug which will melt at MUCH lower temps that 500 F. This is not a very intelligent design. When you put voltage and amperage through a piece of wire....the ENTIRE wire heats up NOT just the coil. The coil will be hotter as you are creating a resistive point in the conductor, but the leads of that wire are hot too, thats guaranteed. Turn your garden hose on full blast and fold the hose in half....when you do you will feel the pressure the most in the hose right where your creating resistance at the fold, same principle applies to electricity. That is the reason that the coil burns bright while the leads don't glow, the coil is the resistive point.

In my opinion, the coil leads should have been soldered in the design, one to the outer ring of metal which contacts the threads of the carto, and the other lead soldered to the very top of the center post. This would allow the silicone plug to be shorter and further away from the coil lead and the coil itself, if even by 3 mm, this would be a good thing.

All of these tests were done on the trifecta from bloog, both plugged in via usb, and with the plug disconnected, I have videotaped every step of each test and will upload it so you can see that the information is accurate and you will see how I performaed each test.

I love the maxxfusion I think it works great...BUT that silicone plug at the bottom is a engineering defect. Leaford, you should have the manufacturer solder those wires away from the silicone plug, in my opinion, this is about the only design flaw in the maxxfusion cartomizer. If you fix that issue, and it is an issue....The Bloog MaxxFusion carto will probably go down in history as the best 808 style of all time, and I will definitely be a long time supporter and customer of Bloog.

Videos are coming.
 
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Frick

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In the several cartos I've now disassembled, the coil isn't touching the silicone plug at all. The only thing burnt or melted are two tiny spots where the leads come through the silicone plug. The coil is actually floating above the plug, directly above the metal insert, held in place by the braided 'chimney'. I've found no burnt polyfill either. The wick is dark with carmelized juice, but that's the only appearance of anything burning or melted.

So while it might not be ideal to have the silicone in that close proximity to the coil, the coil isn't burning or melting the silicone in the cartos I've taken apart.
 

Rift

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Nicely done research. I think the general consensus amongst people whom have gotten into this is that the wick and inner casing don't burn. A few of us have tested that with the same results that you came up with. Leaford has also mentioned that he did extensive dry burn tests on them to see what there failing point is.

Regarding the soldering of the leads If you ask me that would complicate the manufacturing process to much and it presents the use of flux and solder inside the cartos. Most people would not be too happy about this, and if I remember right someone here mentioned that another manufacturer used solder in one of there cartomizers and it was the potential cause of foul tasting cartos.
 

Frick

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Regarding the soldering of the leads If you ask me that would complicate the manufacturing process to much and it presents the use of flux and solder inside the cartos. Most people would not be too happy about this, and if I remember right someone here mentioned that another manufacturer used solder in one of there cartomizers and it was the potential cause of foul tasting cartos.


I actually forgot to mention that in my reply. Yes, solder has caused issues in cartos. Liquid in contact with solder and flux is not a good thing.


If the silicone plug touches the coil, with a ejuice soaked wick, or a dry burn, it doesn't matter it will melt immediately.

It will/would, but in the cartos I've disassembled, it doesn't.

Look, I vape these all day long, so I'm just as interested in the results of these experiments as anyone else. I think this will probably result in somewhat of a re-design. I just don't see the "sky is falling" issues that others seem to see (not necessarily referring to you, but it has happened). I take apart my own cartos and nothing is burnt, melted or otherwise funky, or I'd stop using them. There are alternative designs out there for us to use if we feel these are in some way unsafe, but I don't see any reason to stop using them from what I've seen with my own eyes.
 

MahBohMan

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Jun 11, 2010
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This is not a biased look at the maxx fusion, as a matter of fact im vaping away right now. This thing is just great, all I tried to do here is point out some facts about the device we are using. Knowledge is a good thing, the more educated people are, the better educated decisions you will make. Thats all it is intended to be.
 

cryx

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Wow MahBohMan, bravo, I love it when people actually post data! You potentially saved me a bunch of research this weekend. Although I'm such an obsessive engineer that I'll probably reproduce it anyway as another datapoint for confirmation...

take the silicone insulator on the battery end, and touch the coil with it, and yes it absolutely melts IMMEDIATELY if it comes in contact with the coil itself. I tried to melt it against the coil with a soaking wet wick, and a dry burn, both tests yielded the same result...a melted silicone insulator plug.

I notice you didn't mention anything about the silicone adhesive. Did you test that? It's generally in contact with the wires and extremely close to the coil. I suspect it has a much lower melting point.

During a 6 second burn starting with a soaked wick and factory ejuice, the temp hit 280degrees. During a dry burn the coil temp was pushing 460 degreesF. The polyfill, if in contact with the coil will not catch fire, but it will immediately vaporize, and you WILL be inhaling it. Thats a FACT and its not a good one.

Oh boy, no more PT for me!! That's not good news. Not good at all... I had no idea the coil would get anywhere near that hot. Silicone will start to produce trace formaldehyde above ~300F, and definitely by 400F. Polyfill starts producing formaldehyde at even lower temperatures. OSHA defines formaldehyde as a hazardous chemical and potential carcinogen.

The protective inner air sleeve, which keeps the polyfiller material away from the coil does NOT burn. This is good......as long as it is doing its job of keeping the polyfiller material off the coil...

Assuming it's a safe material.

I love the maxxfusion I think it works great...

With reservations that will hopefully be addressed: Ditto.
 

cryx

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Feb 11, 2011
292
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This is not a biased look at the maxx fusion, as a matter of fact im vaping away right now. This thing is just great, all I tried to do here is point out some facts about the device we are using. Knowledge is a good thing, the more educated people are, the better educated decisions you will make. Thats all it is intended to be.

Yes, and thank you for sharing your knowledge.

I'm vaping it too, although with somewhat of grimace. I'm not going back to cigs. It's just very sad that us customers have to point out these issues to the manufacturer. This is where some (gasp, choke) regulation of the construction materials would be nice. There's plenty of chemists and material experts out that could immediately cite the issues.
 

Rift

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Jan 17, 2011
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I'm curious what kind of digital infrared thermostat are you using and what method are you using to get your temperature readings? Are you using some kind of a jig system to align stuff up correctly, or is this shot by hand?

I wonder if there's a possibility that the wicks aren't being installed in a consistent manner and there could be potential misalignment issues? Of all the cartos I took apart not a single one had any sing marks around any of the silicone or center casing. The worst I found was what I showed in my thread and that was some burnt polyfill.
 

Rift

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Jan 17, 2011
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5
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I was wondering about your burnt pollyfill Rift, is there any chance the wick had been in direct contact or even pierced it?

The wick was definitely in contact with the second smaller layer of polyfill. I don't think its possible for it not to be in the current configuration I'm also pretty sure it has to be for wicking purposes no?. The coil itself though was not touching the polyfill. What puzzled me about that one is that the second layer of polyfill was still fairly moist to the touch but it had a small hole burned through it as you probably saw in my picture. It had also not undergone any refilling whatsoever.
 
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