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What bathroom tiles stopped in a ballistic test

Bathroom tile protection under fire

Published · Prepper Stumper

Short answer

Deer slug and rounds from an M4 Carbine passed through. The reinforced tiles stopped rounds from a 9 mm pistol, a .45 caliber handgun, and buckshot.

The Question

Which tested rounds passed through a reinforced tile barrier?

The Answer

Deer slug and rounds from an M4 Carbine passed through. The reinforced tiles stopped rounds from a 9 mm pistol, a .45 caliber handgun, and buckshot.

What bathroom tiles stopped in a ballistic test

The test of bathroom tiles produced a mixed result: some rounds stopped, while others passed through. Jamie reinforced the tiles with cement after finding that the tiles alone had stopped a bullet from a Glock pistol. The reinforced version stopped rounds from a 9 mm pistol, a .45 caliber handgun, and buckshot. It failed to halt deer slug or rounds from an M4 Carbine. That contrast is the useful part of the story. A material can succeed against the rounds in part of a test without succeeding against the rest. Keeping those outcomes together gives the result its proper boundaries.

Start with the earlier observation. Before the reinforcement, the tiles on their own stopped the bullet from a Glock pistol. That is a specific result involving the material and the shot described. It gives Jamie's decision to reinforce the tiles a clear starting point, but it should remain a starting point. The observation is narrower than a promise about protection against every firearm. A careful summary can acknowledge the successful stop without stretching it into a universal claim. The distinction matters because the later test itself supplied examples of both stopping and penetration, rather than a single outcome covering everything fired.

The bathroom tiles were then reinforced with cement. This was the second attempt at a bulletproof material in the account. The sequence is straightforward: an initial result with tiles alone, a reinforcement, and further testing. There is no need to give the reinforcement a broader meaning than the reported comparison allows. It formed part of the material that stopped the listed pistol rounds and buckshot. The result still included rounds that the material failed to halt. Describing the reinforcement as a change in the tested barrier preserves the sequence without claiming that the change eliminated the barrier's limits or created general protection.

The successful stops deserve their own space. Rounds from a 9 mm pistol and a .45 caliber handgun did not pass through the reinforced material in the described attempt. Buckshot was also stopped. These results make the account more interesting than a simple statement that the material failed. There were clear successes within the test. Reading them alongside the penetrations avoids flattening a mixed outcome into a slogan. The strongest concise description names what stopped and what did not. It leaves the reader with a comparison to examine rather than a broad label that hides the differences between the reported shots.

The limits of bathroom tiles become explicit with deer slug and rounds from an M4 Carbine. The reinforced material failed to halt those. Those outcomes are not an optional footnote to the successful stops; they are part of the answer to the same question about the tested barrier. An account that mentions only the pistol rounds and buckshot would leave out the very observations that define the limit. Conversely, an account that mentions only the penetrations would leave out the material's successes. The balanced reading needs both groups. The result is useful precisely because it identifies a boundary within the test.

The word bulletproof invites a broad reading, so it helps to replace the label with the observations whenever precision matters. In this case, the reinforced barrier stopped the listed pistol rounds and buckshot, but not the deer slug or M4 Carbine rounds. That sentence carries more information than a bare yes or no. It also keeps the scope visible. The reported outcome concerns the attempt described, with the rounds described. Extending it to an untested situation would require more than this account offers. As an editorial judgment, the most helpful version of the story is the version that keeps its qualifications attached.

For bathroom tiles, the change from an ordinary material to a tested ballistic barrier is the striking part of the setup. The more valuable part of the result is the contrast between successes and limits. Jamie's reinforcement followed a successful stop by the tiles alone; it did not make every later shot stop. Those points can comfortably coexist. There is no contradiction in saying that the barrier stopped several types of rounds and that it was penetrated by others. A reader can therefore answer the original question by sorting the reported outcomes, without having to choose an all-purpose verdict for the material.

The takeaway from the bathroom tiles test is a specific comparison, rather than a promise of protection. Tiles alone stopped the Glock pistol bullet in the initial observation. Reinforced tiles stopped rounds from the 9 mm pistol, the .45 caliber handgun, and buckshot. Deer slug and M4 Carbine rounds were not halted. Keeping that sequence intact makes the result easy to recall and difficult to overstate. The successful stops are real parts of the account, and so are the penetrations. A clear answer gives each its place, with no need to turn this limited test into a recommendation for a protective barrier.

Source: MythBusters (2008 season), What is Bulletproof? 2