barrel joints mainly
According to its government Safety Data Sheet, SM 50 is oxidised castor oil and molybdenum disulfide powder - no silicone involved. Odd perhaps, but castor oil was the main lubricant for rotary aircraft engines back in the day (to the predictable detriment of aircrew sitting behind them).
https://farmcottagebrands.com/wp-con...nLube-SM50.pdf
A knowledgeable friend told me Beeman's "Ultra Lube" (my personal favorite for leather seals; jealously hoarded as it's extinct) was simply re-packaged SM 50 (which is impossible to find in the US). I would love to get some in hand!
Last edited by MDriskill; 04-03-2024 at 01:24 PM.
THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
NEXT EVENT :- August 3/4, 2024.........BOING!!
Silicone oil was supposed to be a high flash point oil that would prevent the inconsistency caused by the dreaded dieselling. Maybe it works with leather but for metal to metal it’s not good. I siezed a loading tap with silicone grease one time, I think you can score the metal with it.
[QUOTE=MDriskill;8288986]That is interesting too! Beeman's "Chamber Oil" was straight silicone, and I would not be surprised if it were this Abbey stuff re-labeled.[/QUOTE
Abbey lube was molyibdanised silicon oil. Why use silicon oil to mix with moly,can't the moly compound be mixed with a standard oil then?
Moly can, indeed, be mixed with "normal " oil. Charlie da Tuna often made references to a special mix. Something along the lines of "Gene's mystery oil". Reportedly a mix of 30w non -detergent oil mixed with moly paste. I believe Bonnie and Clyde used to include a similar lube in their kits. And V-Mach used to include moly oil with the kit.
THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
NEXT EVENT :- August 3/4, 2024.........BOING!!