WD-40 freezing point
Here is a tid-bit of information about the freezing point of WD-40 for those of us who use it in the winter in our door locks.
A representative from WD-40 replied to me in an email "The Freezing point of WD-40 is -50 degree F" |
You should not use WD40 on your door locks. It flushes out the dry lubricant used in locks. Ask any locksmith. Most of those lock deicers are bad as well, they do the same thing. I guess WD40 would be better than the deicers because it has its own lube. Use graphite or Molybdenum based powder lubes and you will not have frozen locks to begin with.
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WD-40
WD-40
is a good starting fluid for lawn mower thats about it more propane than anthing else in can just my opinion mitch |
Originally posted by Norm You should not use WD40 on your door locks. It flushes out the dry lubricant used in locks. Ask any locksmith. Most of those lock deicers are bad as well, they do the same thing. I guess WD40 would be better than the deicers because it has its own lube. Use graphite or Molybdenum based powder lubes and you will not have frozen locks to begin with. http://www.rv.net/forum/index.cfm/fu...g/13134747.cfm http://www.blueglue.com/archives/vin.../msg00250.html http://list.miata.net/miata/1998-07/1246.html |
I used to use ATF in the lock. Last batch of vehicles came with key fobs so I never use the key. ;)
JMC |
Take apart many locks? Most are dry lubed with graphite base or molybased lubes. Some are wet with moly or lithium based greases. The lube in WD40 is insufficient for locks. It is like you said a Water Dispersant and penetrant. It also contains solvents that will flush out any lube the lock may have had. Graphite only cakes when you use too much or when applied to a lock that is greased. Molybdenum Disulphide cakes even less.
Too many people think WD40 is a cure all. For some locksmiths it is job security. Thanks for the supportive links. |
Originally posted by Norm Take apart many locks? Most are dry lubed with graphite base or molybased lubes. Some are wet with moly or lithium based greases. The lube in WD40 is insufficient for locks. It is like you said a Water Dispersant and penetrant. It also contains solvents that will flush out any lube the lock may have had. Graphite only cakes when you use too much or when applied to a lock that is greased. Molybdenum Disulphide cakes even less. Too many people think WD40 is a cure all. For some locksmiths it is job security. Thanks for the supportive links. Confucius say "If it does not move, and its supposed to, use WD40. If it is moving, and its not supposed to, use duct tape." :lol: |
i had my interior light stay on when my truck was 2 years old my soph year of high school. Hosed down the latch with WD40. Never had a prob since.
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they're talking about spraying WD40 into the keyhole to keep it from freezing when you try to unlock the door...I think :)
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Originally posted by Johngs they're talking about spraying WD40 into the keyhole to keep it from freezing when you try to unlock the door...I think :) |
For what it is worth, a locksmith friend of mine loves WD-40. He makes lots of money from replacing lock cylinders that have been wrecked by the stuff. I would never put that crap in a lock, if I have a rusty bolt then I use WD-40. Marvel Mystery Oil, or gun lube both are much better. There is also lock oil, I don't remember the name, available.
Joe |
Never had any problems using WD-40 on locks. I have a few Master Locks that are well over 10 years old and every year they get a shot of WD-40 and have worked flawless… :thumbsup:
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Originally posted by Wookie For what it is worth, a locksmith friend of mine loves WD-40. He makes lots of money from replacing lock cylinders that have been wrecked by the stuff. I would never put that crap in a lock, if I have a rusty bolt then I use WD-40. Marvel Mystery Oil, or gun lube both are much better. There is also lock oil, I don't remember the name, available. Joe What does your friend say that the WD-40 does to the locks? What kind of locks? Car door locks? House Door? Other kinds of locks? "The truth is out there somewhere..." :thumbsup: |
Well I'm not sure about the bad rap on WD40. I've been using it in my car locks for 35 years and haven't had a problem in all that time. When you live in MN and run your car through the car wash, water dispersant is exactly what you need. Otherwise your locks freeze shut.
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I have been using WD40 in my vehicle door locks for about 50 years, giving them a couple of shots at the start of winter. I have never had a door lock freeze up on a vehicle that has had this treatment. This is in Vancouver, Canada where we get lots of rain (moisture). I picked up this trick while working in gas stations.
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