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My heavy lock for commuting is starting to feel a little stiff. What due you folks use for locks? I've chain lubes, WD40 and silicone spray in the tool box at the minute
Chain oil will last longest.
I just drip a bit of chain oil into it, a couple of drops, and then open/close it a few times to work the oil in.
3in1 do a lock specific tin spray oil and I have to say it's brillianr!!
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http://www.amazon.co.uk/Walker-Locksmiths-WL403-Graphite-Powder/dp/B007D46BFO
I have no idea if that link will work but it's for graphite powder. Don't use oil.
HB pencil and a sandpaper block.
GT85 has worked for me
Graphite for locks.
I use a silicone spray, logoc being that i use it on the boat and use silicone grease on the cars suspension bushes so it must be pretty waterproof to last in those! Sprayed it in the car locks nack in November and not had any frozen locks either.