I'm not messing with marbles. I make up my finish in very small batches and house it in very small bottles. As long as I can use a gas to accomplish the same thing I intend to do so.
After my can of argon is gone I will try propane.
Thanks for all the responses.
One would have to make sure the marbles had absolutely no contamination on them. The biggest problem in my world would be silicone, or, synthetic grease or oil, that get used on every project around the place.
Keith, I know guys that subbed propane for R12 in automotive air conditioning compressors. That went on for decades, and, I always figured they were flirting with disaster, but, I never heard of anybody having a fire or explosion while doing that. I figured out, long ago, that the typical Pepsi generation basement 110 volt dehumidifier had about 15lbs of R12 in it, (they didn’t want them to freeze up, and refrigerant was cheap) and I bought about a dozen of them when I went to garage sales, and recovered the R12 out of them.
Flash forward to today. Most cars AC units are charged with propane.
Best,
Ted
