@rabblerouser if you want to PM your address, I have 2 of those white caps. I will send them to you. Don't worry about the stamp.I think u have the idea...
Have u ever seen the little white caps that come with the omicro carts? Check it out... I used one of those (which has a hole already in it) and I threaded it onto the threads that are on the needle attachment that came with my SSTB. I then pulled the "needle" out of the threaded housing and v'wala. Open bore adapter. And when u screw it onto the SSTB it seals perfect. Plus it sticks out past the adapter and is silicon so it acts as a grip... just like a syringe. Thats the ONLY thing I do diffrent than most. I scrapped the shitty plastic adapters for a metal one.
So... in that frame of mind. If the teflon and plastic adapter sealed well there is one thing that I just remebered. Bore out or cut off the tip of the adapter. You notice one end has a little hole.. way smaller than the hole on can. It causes pressure loss too... feel bad I didnt think of that sooner... but I bet that will help if you can mimic the nozzle I use.
And I figure even some rubber band around the narrow part would act as a grip and frost prevention.
I fucked up a bunch to get here... true skill only comes from trial and error.
Edit: u mentioned cold burns... ive gotten them... but its always due to direct contact with the stream.. lol. Maybe im numb... ive stuck my finger in the stream on a large larf run to see if it was still sticky.... I should perhaps put disclaimers in my signature...
Peace and fortune to you
Take that piece out and blast butane through a well packed SSTB tube. Depending on the fit of your pieces butane WILL start to seep out there eventually with a well pressurized tube. Butane deffinatley touches that, there is no question.
I never replace the Teflon wrap unless I feel the need to take the tube completely apart and there really is no need to do that for cleaning.
To each their own.... but if you go read the rest of the thread... you might find I wasnt asking for help...
Whether or not you asked for help is irrelevant. You posted information that some may feel unsafe. We don't need that. So I posted better information. I'm not trying to help you. I'm trying to prevent the spread of potentially bad information and help the community.
Your still assuming that butane even comes in contact with that seal ... which it doesnt.
Quite the opposite, you're assuming it does not. Why do we use thread sealers? To prevent leaks of gas or liquid flowing through the thread gaps. If you put some silicone at the end of that gap, the fluid still fills the gaps in the threading and will come in contact with the silicone. Its not going to make a lot of contact and soak the whole piece of silicone obviously. The amount of exposure in your application may not be much, but its there. And hey, your right, a little teflon tape first probably takes care of my concern. No problem now!
I think I just screwed the needle fitting onto the tube and used it as leverage.... then yanked the needle by wiggling back and fourth with plyers. Its only held in by friction. There is a chance u will squish the needle... but its not like u need it for anything.