On top of that, all of the "safety" issues above in regards to medical grade silicone had to do with implantation. In these statements, there is no mention of categories grouped by heat resistance or oxidation, so while medical grade silicone may be just fine at normal temps, do they fall out of "medical grade" when heated up to vape temps?
Exactly so. Guys fishing for 'documentation' to back up their guesses should be a little careful here. We're not talking about implanting the silicone or breathing the dust of the mica. But rather the fumes/vapors from them under heat.
Medical grades of silicone rubber are about the
catalyst, not the basic polymer. Those interested in the idea might want to read up a bit. IIRC we want to use Platinum based ones, not the cheapest or easiest to use. NASA published some excellent stuff on catalyst outgassing (they're most interested as you might guess.....).
Basically, in all cases, after the rubber 'sets up' the catalyst that made that happen is 'left over' and is trapped in the bulk of the material. Over time most of it migrates to the surface where it 'comes off'. If we see something coming off it's
leaving. That means there's less than before. It all 'gets better' it's a matter of degree and rate.
So, the idea is, I think, to first use a material that doesn't involve a dangerous catalyst. Some of them are toxic, some not (the big difference between 'medical' and 'industrial' grades). Then to do a curing routine that purges enough of it out so it's no longer questiontionable (a moving target at best).
Likewise with Mica. It's a traditional material for this. Look into a toaster or hair dryer sometime, chances of finding it there are high. It, too, can be safely and professionally used here I think. The 'fact' it (or Silicone Rubber) are there is not proof of anything other than it's there. Some cleaning products are toxic, someone using cleaning products is not necessarily using toxic stuff. Gasoline is toxic, that doesn't mean it's not good idea to put some in my car's fuel tank if I wish to drive to the dispensary for more goods.
OF
