Yun, thanks for your advice, straight from the source. I was in your country in the Mid-Seventies, in the service. People were so nice.
Dear Mr. SveaSizzler, I Thank you for your service in my country. As you remember well, this country was so poor without any good military force, power, we had the depostic dictatorship at that period... I'm a young man so I didn't live at that period y1970s but really can imagine how it was. If you'll have any chance to be in Korea once again yet for the tourism, please visit here after the covid19 circumstances are getting away. When I was young, my parents had a apartment house in Yong-San district in order to lend for US Military soldiers, so I met several US soldiers but I couldn't speak English (never...!). I still remember an event, one soldier gave me a watch, Casio, so it was going to be the first watch for my collection. now have much-much better watches however it was great gift for me, because we were not very rich so my parents couldn't give me even a casio cheap watch at that period! Sorry, it's too personal story, anyway I'd like to say - Thank you for your service for my country & all other sacrifices during Korean War from 1950. And this: Remains of 147 South Korean Soldiers From the Korean War Will Return Home > U.S. DEPARTMENT OF DEFENSE > Defense Department News Yun
The silicone oil is in the item in my 1st post. Green gas, made for airsoft guns. There is no oil in the item mentioned later. That is made for a torch. I got word that the Boss Fuel is not 100% propane. It is "mostly" propane. Still proprietary information.
I'm familiar with green gas and I have an airsoft gun capable of running it. I never did since running propane through it would be a little too stressful on the frame (batters the plastic and cracks it) versus R134/duster gas which has lower operating pressures. My thought is that if the canister does have oil in it, that it could be "purged" before being used as a pure propane canister. If the amount of oil is negligible then it might be even viable for straight use (at whatever risk to whatever burner is being used) before being refilled with propane.
I corrected my information to say I wanted to use the Boss Fuel. It has no silicone oil. I bought a case of Boss Fuel.
Found an alternative to the green gas cans that's minus any silicone oil and not mixed with butane or anything meaning the canister is likely pressure rated: A caveat: I don't think there's any odorant into it, so the can has to be refilled (at one's own hazard) with normal propane after some/all of it is used so it has odor or otherwise the risk is that it can leak minus any smell. Another caveat: I can't tell if the top of the cans are sealed to be pierced or if they have a lindal valve. I found a photo of one sealed. I do not know if there is a valve underneath, this is where finding one locally would make the most sense. The threads would definitely have to be checked as well. I can't upload an image but the R290 cans come in a similar format as the R134 refrigerant cans with the screw on top and valve, which is pretty much the same as the green gas cans. They seem to be available from several sources which seem to cater to the HVAC industry and for automotive ACs (Princess Auto in Canada does for sure). Here's hotlinked(may break in the future) a photo of one I found that comes from the same company as one of the green gas canners in the US:
I have sucessfuly used used the BOSS propane canisters in a kit I put together for this coming winters Polar Vortex blizzards soon to be upon us :-( The Polar Vortex Kit: the hand held torch that introduced me to the canisters: