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Dear Heat,
Good a.m. and may this find you well. Given the topic at hand, I wonder why your locks should be freezing. Perhaps all that's needed is some Heat, from a "laying on" of hands.
So far as I know, WD-40 is not a synthetic lubricant. It is a very low density and viscosity petroleum-based lubricant. In extreme cold, its lower density and viscosity will let it lubricate longer than denser, more viscous petroleum products (e.g., 3-in-1 Oil).
If your lock problem is the result of moisture, warm the lock with a hair dryer for a few minutes. Then squirt some WD-40 into the lock, using the thin red tube that comes with the product. Continue to keep the lock warm (but not hot, just warm). This will help the WD-40 to drive out any water. If you have Teflon lubricant, spray it in. It will penetrate and coat the lock's working surfaces. You should then have no problems with locks freezing, at least for a while.
The WD-40 will have pushed out the water, and the Teflon will have washed out the WD-40, leaving the internal surfaces coated with Teflon. Until temps hit -200 degrees Farenheit, your locks should work.
Hope this helps.
Yours faithfully,
spook
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