by gswimfrk » 18 Dec 2010 4:25
I like to use silicone lube for my locks (I use silicone for best IC cores) and they work well. Be sure if you use silicone, clean the cylinder with a key and some WD 40 to remove the graphite. I don't particularly like graphite b/c it tends to cake up the insides of the lock cylinder. (Any complete hardware store)
Another great product, although a tad more expensive is Houdini lock Lubricant. Some stores like Osh will have Lock-Ease but i do not recommend it as it is essentially a graphite powder mixed with WD-40 (Can be purchased at some locksmith/supply stores or online)
Lastly another formula that works well is Medeco's own lock lubricant formula, although a bit expensive ($12) it is graphite, silicone, and WD-40 free. It works well in locks with a lot of moving parts. (Can be purchased at about any Medeco Dealer)
Just my 2 cents
Hope this helps,
gswimfrk