Independent industrial acoustic testing has proven that the EPS Cement Sandwich Panel delivers exceptional noise reduction performance that far exceeds the standard requirements for most factory partition walls. A standard 100mm thick EPS Cement Sandwich Panel can achieve a sound transmission class (STC) rating of over 42, which means it can block more than 95% of normal industrial machinery noise from passing through the wall. For reference, this level of noise reduction is enough to turn a 90 decibel heavy stamping press work zone into a background noise level of less than 50 decibels on the other side of the wall, which is quiet enough for normal office conversation. If you use a 150mm thick version of the panel, the STC rating goes up to over 48, which can block even the extremely loud noise from industrial generators, industrial saws and large compressors. The unique dual-layer cement facing and closed-cell EPS foam core structure works together to absorb different frequencies of industrial noise, from low-frequency heavy machinery rumbles to high-frequency sharp metal cutting noise. This performance is far better than standard hollow brick walls of the same total thickness, which usually only deliver an STC rating of around 30. Many factory owners who have installed these panels to separate their noisiest machinery zones report that their workers no longer need to wear heavy ear protection outside of the dedicated high-noise zones, verbal communication between team members across the factory becomes much easier, and the number of workplace accidents caused by missed audio safety alerts drops significantly. This verified, test-backed noise reduction performance makes the EPS Cement Sandwich Panel one of the most cost-effective industrial acoustic wall solutions on the market today.