SM50 --what do you use it for?

[ggggr]

I only really use it for leather breech seals.
What do you use it for?

[Garvin]

I only really use it for leather breech seals.
What do you use it for?

I use it for lubricating barrel joints etc.

[Hsing-ee]

I only really use it for leather breech seals.
What do you use it for?

The smell reminds me of late 1970s springer ‘tunes’ .. it’s the olfactory equivalent of an Echo & The Bunnymen song.

In terms of actual airgun use it’s the best thing to lubricate a leather washer with, containing silicone for the leather and molybdenum for the metal. As such there’s not much call for it for modern rifles but for pre-1980 it’s a must-have.

[WILBA]

The smell reminds me of late 1970s springer ‘tunes’ .. it’s the olfactory equivalent of an Echo & The Bunnymen song.

In terms of actual airgun use it’s the best thing to lubricate a leather washer with, containing silicone for the leather and molybdenum for the metal. As such there’s not much call for it for modern rifles but for pre-1980 it’s a must-have.

I use it on sll my guns for levers,breeches, it's a good general metal to metal lube.

[rapidresponse1]

barrel joints mainly

[MDriskill]

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!

[Hsing-ee]

According to its government Safety Data Sheet, SM 50 is oxidised castor oil and molybdenum disulfide powder - no silicone involved.

https://farmcottagebrands.com/wp-con...nLube-SM50.pdf

I never knew that, it makes a lot more sense now. Abbey used to sell a liquid silicone lube so ‘Silicone Gun Oil 35’ I thought it was a molybdenumised version of that.