How to Freeze a Lock Off!




***Disclaimer*** The following is for informational purposes only, i take no responsibility for what you do with this knowledge. i can not be held responsible for any property or medical damages caused by using this technique.
Freeze a lock off with compressed air cans used for computer dusting. Watch the lock crack in half.
Watch the video for an overview.

Step 1: Supplies

the supplies you'll need

- 1 standard padlock

-2 cans of compressed air
the kind used to blow the dust out of you computer

-1 hammer

Step 2: Attach You Lock to a Secure Latch

Insure that your lock is attached to a secure latch as we'll be striking it with a hammer.

Step 3: Spray the Lock With the Compressed Air

First, turn the air canister upside down and begin to spray the lock. By turning it upside down you're actually spraying 1,1,1-Trifluoroethane which cools the metal lock to -67 degrees fahrenheit! Frost will immediately begin to from on and around the lock.

Step 4: Strike the Lock With a Hammer

When the compressed air cans are empty, very carefully and very forcefully strike the lock with a hammer. The lock should either shatter off the post completely , or fracture around the post!

Congratulations! You've smashed off a frozen lock!



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    120 Discussions


    Question 1 year ago on Introduction

    Can a can of compressed air break or open a door lock? And if so then how


    11 years ago on Introduction

    The bpt for 1,1,1,TCE is -47C, not -67C, and that temperature wouldn't be maintained for more than a few moments after cooling. What temperature does steel become brittle below, anyway?

    18 replies

    Reply 11 years ago on Introduction

    Very much depends on the steel. Cheap and crap steel, as seen in this padlock, will probably not be much below -30 C. A good Boron steel maintains strength well enough even down at -173 C, where the air itself becomes liquid. Bit pointless on a padlock this rubbish. It would be easier to shim it, or pick it. And a good whack with that hammer would have taken it off anyway!

    _soapy_John Smith

    Reply 11 years ago on Introduction

    You could try chewing through the padlock, as over several months the steel would rust away. Though that's not fun either... What's my point? I don't know. But chewing through it would be less fake than this Instructable. (Is there a name for a faked Instructable? An Unstructable? CONstructable?)

    John Smith_soapy_

    Reply 11 years ago on Introduction

    you should do the chewing one. include how it boosts your iron in your body, too. i think its a constructable.


    Flaming also required a low IQ which explains why they're bad at it and why you're good at it. How's that for a barb?


    Reply 2 years ago

    Don't get a barb confused with a Barbie.. euther the doll or the Australian BBQ...


    Reply 11 years ago on Introduction

    Hang on, you're criticising us for being bad at making other people's online life unpleasant? How twisted are those values?


    Reply 10 years ago on Introduction

    Very. But it makes sense. Some how. It's like having a crappy comeback in a burn(blaze, roast, yo mama) round.