Der8auer tests pressure limits of acrylic and glass water-block windows

Der8auer, the YouTuber, extreme overclocker and Thermal Grizzly CEO, has been testing the pressure resistance of water-block cooling windows. While these windows are traditionally made from durable acrylic, Thermal Grizzly has been experimenting with glass versions.

Both acrylic and glass-windowed blocks were placed inside a grey plastic crate, submerged in water, and pumped up to see what internal pressure they could withstand before cracking. The experiment could have been performed in the open air, but that risked an explosion of glass or acrylic.

A traditional GPU block with a PMMA (acrylic) window cracked between eight and nine bars of pressure and largely stayed in one piece; a repeat run cracked a corner at nine bars. A glass-windowed GPU block shattered in a denser pattern at around five bars, an expected result since acrylic is much more flexible and pressure-resistant than glass.

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