Thought I'd share my two cents. I've been a dealership tech for 10 years, ASE master, etc. What I've found is squealing is usually caused by low quality components or overheating or glazing of the brake rotors (both of which affect coefficient of friction), or in some cases, brake hardware contacting the rotor, which is less of a squeal and more of a dragging sound. Another important thing is brake pad shims, which fit onto the backside of the pad with a little lubrication between the shim and pad. This helps to absorb vibration and allows the pad to be able to move slightly independent of the caliper. If a customer comes in with a brake squeal and the pads are OE, in good condition with all shims and hardware intact, resurfacing of the brake rotors typically takes care of it. Adequate lubrication of the slide pins is also important, but a seized or sticking slide pin will usually cause a low brake pedal and not usually noise. I've never used any of the anti-squeal compounds, so I can't speak to them. I believe using OE parts and proper shim lubrication is best for noise free braking.
Sounds like good lubricant for o rings and anything that moves and gets wet Doug. I'll have to get some next time I order some things.
I looked up the grease I mentioned. It was StaLube synthetic brake and caliper grease. Made by CRC. Not Stabila. There are so many good products out there today that can make a big difference in how long mechanical things will last, and how well they work.