When I started work in 1961,we were Girling and Lockheed agents.We used a special white grease on brake moving parts,adjusters,ends of shoes etc,and when we rebuilt master and brake cylinders we used rubber grease.Can’t remember the correct name of the white grease but it was affectionately known as n***** grease.(I don’t want the PC police involved so didn’t type the full word) We hardly had any problems with seized adjusters etc.Mind you the cars used to get a major service every 6k miles,and a minor every 3k so probably were never left long enough to get seized.