Rift & Darrigaaz are exactly correct: all silicones are definitely not safe. I've built aquariums. I currently have a 90g with a homemade 75g sump in the basement, so I know a thing or two about silicone. I have confidence Leaford will try to figure it out, but his current knowledge of silicone appears rudimentary at best. That's by no means an insult, and I could be wrong.
I don't think leaford has really said enough one way or another to judge his knowledge of silicon, your basing your assumption off of two sentences of a rather short post on a internet forum?
I do know that if you don't use 100% pure silicone in an aquarium,
Its a good thing I don't vape underwater...and that I am not a fish.
Hey you know what else kills fish?
Nicotine.
The Moral of this story is don't let your fish vape.
Silicone is very gas permeable. Silicone will leech and outgas anything into and out of it, much more so as it heats up. I suppose that means that even though removing the silicone adhesive removes the nasty taste, maybe the silicone is absorbing something else nasty in there and re-releasing it when heated.
In all honesty, I am not convinced removing the addhesive will cure the burnt taste, burnt tasting cartomizers are not limited to bloog maxxfusion cartomizers and exist in cartomizers with no silicone at all.
The silicone in the carto is neither crystal clear like pure silicone, nor does it have the flexibility of pure silicon. Does it have anti-bacterial/fungal/mildew/etc additives? Are there other chemicals in it? What solvents were used? This is important because even food-grade silicone can be toxic because it's intended for temporary contact with food, not inhalation into the bloodstream.
I think in that short post from leaford he mentioned an English MSDS, an MSDS which would answer these questions. Again you are presuming inhalation without proving inhalation.
People have described some of their cartos as tasting like ammonia/urine.
It could very well be the adhesive, or not. Some people have described Wyatt Earp as tasting like urine as well, it is silicone free or so I am told.
That's most likely the silicone solvent known as acetic acid
. Luckily it's just an irritant w/o long lasting effects, but who knows if it's the only solvent? This tells me the silicone in some cartos isn't completely cured.
Now you are jumping, completely without basis into saying it is not cured...based off another assumption of the specific type of silicone being used, could you at least wait for that information to be furnished before you go down the chain of assumptions
Even when silicone appears fully cured, even if heat cured, it typically takes a few more days to complete. Solvents like acetic acid react to and are released by moisture because curing requires moisture. Vaping is going to release the remaining solvents if the carto isn't fully cured before the condoms are put on it and it's hermetically sealed in the pack. Vaping is going to slowly release anything else in it too...
I know silicone oxidizes and produces formaldehyde at ~300F, but I'm not enough of a chemist to know if nicotine can accelerate that oxidation process.
Do you know the temperature that these cartomizers are functioning at?
Industrial silicone can contain lots of nasty stuff like vinyl, so pure speculation is that could explain the slowly developing nasty taste in other cartos.
well of course. We are already speculating on the type of silicone being used, the amount of time it is allowed to dry, the cause of the offputting taste....why not do some more speculating...
Not to be mean or bombastic, but China doesn't have a great track record for using safe materials. Who knows what cheaply sourced silicone the factory might (I said -might-) be putting in these cartos?
I quit smoking so I wouldn't have to worry about what is going into my lungs and bloodstream. For our safety we really need to know what's in these things, and if it's silicone, it should be 100% silicone that is properly cured. Not to sound scary, but if silicone additives would kill my fish, why would I want to inhale those same toxins straight into my bloodstream?
I'm not here to trash a great, and I do mean great, product. I just want to know it's a reasonably safe product, and I'm willing to pay a few more bucks for safety.
Its funny you keep calling this a great product, when you have literally trashed it...as in you stated you threw it into the trash.
Trust me if I buy something I don't call it a great product if it ends up in my trash bin. I call it trash.
You know when you first came on and said this is my burnt cartomizer, and some people said that wasn't a bloog, I defended the fact that it was indeed a bloog. However you make statements like the burning caused a yellowing of the core and "ring" when if you look at your picture EVERYTHING was yellow, the fibre the inner core both layers of poly fill...obviously you were vaping yellow #5 or some other yellow fluid...that may help explain the urine taste anyway.
You also stated the burnt taste went away when you disassembled your unit and removed the silicone, you state you did nothing else but this...however obviously you did do at least one more thing...you disassembled your unit. This leaves many variables unaccounted for...most importantly the fact that you would have fluffed out your pollyfill when you took it apart. This is a known fix for several cartomizers if the material is overly tight it hinders capillary action.
Also, this very thread rules out a few points from your thread, mainly that "chunks" of your oring were missing or as you said "vaped", as it was never a ring at all but simply applied adhesive, adhesive that is apparently not applied uniformly. No chunks were vaped it is likely they did not exist, the only burnt marks on your pictures that remain is a single hard to view singed mark on your inner core and some tail marks on the oring sleeve that forms the base of the unit, not good signs to be sure but a far cry from your original statements that you vaped chunks of plastic and it sickened your entire family.
Lets be cautious without being dramatic here, the silicone gasket in my espresso machine reaches temperatures of over 190F and has yet to evaporate into thin air. Is it the same type of silicone that is being used here? I doubt it, mainly because it is not an adhesive, but I can't assume anything until we get more information. Then, once we have it, we can say with a bit more clarity if the sky is in fact falling or not.