I assume the graphite stuff is dark/black. Never used Fluid film, but sounds like its near clear. Graphite is good as lube where you don’t see it and don’t want buildup. Won’t attract dirt like grease. Definitely good for cables and roller chain.
I have had fluid film on my shelf for 20 plus years. Made from lanolin. Repels water, and stays
on surface for a long time.
It seal like wax, and will wick through rust.