Lanolin based underseal & rust prevention homebrew

Lanolin is the key ingredient for many rust prevention solutions, but you can make it home for less and with a higher lanolin content than other commercially available blends.
Minimum lanolin content to work efficiently is 12.5%. This blend will make up to 25% lanolin content solution.
Links to products used in the video:
Mineral oil (min 750ml required): amzn.to/3POzoCe
Lanolin (500g required): amzn.to/3tagixn
Mineral spirit (min 750ml required): amzn.to/3rrUxc3
Sprayer: amzn.to/3Ryoj9S

[@tonydoggett7627]

Australians use lanolin based sprays under our 4WD’s for beach driving. Also great on spades and shovels.
Also shearing sheds aren’t attacked by termites because of the Lanolin absorbed into the timber.

[@offshoretomorrow3346]

Interesting!
What is 'mineral oil' though? What is it sold for normally?