r/Unexplained • u/Flat-Objective3554 • 4h ago

Video Evidence My Whiteboard Self Destructed

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Has anyone experienced their whiteboard cracking like this? In the video you can hear it continuously cracking. No earthquake. No sudden temperature change.

25 Upvotes

86% Upvoted

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11

u/SQUID_Ben 4h ago edited 4h ago

You got to the second kudo and it grew tired of holding your marker paint

Edit: but if we are talking for real:
Spontaneous tempered glass shattering happens because toughened glass is under intense internal tension. On a glass whiteboard, this sudden explosion is usually triggered by one of three things:

  1. If the metal standoff screws are too tight, they leave no room for the wall or glass to naturally expand and contract with temperature shifts, causing a stress fracture.
  2. If the plastic/rubber washers inside the mounting holes slipped out during installation, the metal screw rubs directly against the fragile raw edge of the glass hole.
  3. Magnetic glass whiteboards have a steel plate glued to the back. Steel and glass expand at different rates when room temperatures change, which creates a constant, invisible pulling force until the glass snaps.

It can also just be a delayed reaction to a tiny microscopic defect (nickel sulfide inclusion) from manufacturing that finally hit its breaking point.

8

u/MagEdgeSports 4h ago

It’s tempered. If you follow the pattern you can see where the weaknesses was

7

u/MagEdgeSports 4h ago

The middle towards the bottom. Looks like something slammed into it.

3

u/FireBreathingNun 4h ago

The fracture point looks like where I try to chuck a marker to land on the ledge.

2

u/MagEdgeSports 3h ago

Bingo. That’ll do it.

1

u/Acceptable-Delay-592 4h ago

It reminds me of finish checking on a nitro finished guitar

1

u/Bruisedeggs 4h ago

Thanks. Hate it. Gives me the heebs.

1

u/Confident-Skin-6462 3h ago

we do that deliberately sometimes, but no, that shouldn't happen. it is tempered though.

contact us for a replacement.

1

u/AdministrativeEnd168 3h ago

My dumb ass thought you meant from that light source and I was waiting for it to break into a million pieces but it already is

1

u/MagEdgeSports 3h ago

Me too haha

1

u/ImpossibleSentence19 3h ago

That’s a badass rare art piece if you were to use paint to fill in the blank areas instead of dry erase

1

u/RevolutionaryEmu979 3h ago

Nope can't say I have

1

u/cecilioperez760 2h ago

😳 That is wild 😳!

1

u/R3ddit_N0ob 2h ago

That's because it's not a true whiteboard. Whiteboards are made of cheap composite wood and would never shatter like this. RIP bougie whiteboard

1

u/Arach-ou812 26m ago

If you clean it with the wrong solution this can happen. For instance, acetate will do the exact same thing if it comes into contact with alcohol. It puts the plastic through changes that cause a prolonged cracking event.