Dry silicon spray in dusty climates may be a useful lubricant. Lubrication of valve stems in two separate plants in Saudi Arabia and Kuwait required quite a bit of review. Natrually you wanted a lubricant that was compatible with the process, but in general the corrosive atmosphere, high ambient temperature turned all lubricants into hard waxes that did not prevent galling. Wiping and application of lube oil seemed to work. Doing nothing did not. Beating on it with a hammer did not help.
Silicon spray will also leave a residue. I just screwed up a 900$ electrical breaker by trying to lube it with silicon spray. Contact closures got sticky and were not operating. Took a lot of electrical cleaner to free it up.
Best recommendation is to not use a hammer.
pops