rootes1, why retaining fluid and not loctite?
Retaining fluid is a type 'loctite' other providers of industrial adhesives are available..)
loctite make lots of different types of eng adhesives some are threadlockers, some are retainers etc.
Some time and for things you might to take apart using a threadlock is overkill and all you need is to put a decent retaining fluid under the head of a bolt/on the shank – this is enough to stop the bolt coming undone in use, but makes it easier to take off. I use Loctite 638 and 648 on engine conrod bolts for example – holds them firm, but you have still take apart when needed also not put threadlock on means you get truer torque readings
For bikes Loctite Stud and bearing fit (#270) and Retainer 603 are ideal for seating beaings in housings, round the edge of chainring bolts etc