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Acoustic Academy

Armourcoat Acoustic® Plaster System

  • The Armourcoat Acoustic® Plaster System is designed to optimise the acoustics of interior spaces. From large theatre halls, offices, classrooms, hotel receptions and private residences the use of hard sound reflective surfaces such as glass, wood and stone can cause excessive sound reverberation which leads to unpleasant noise levels. The correct control of sound can create a calmer and more pleasant environment. The Armourcoat Acoustic® Plaster System offers a clean flat and smooth mineral surface that can be applied seamlessly over large expanses to both flat and curved surfaces and offers excellent sound absorption.

    Armourcoat Acoustic® Plaster System has been tested by the University of Southampton (ISVR Consulting) following BS EN ISO 354:2003 ‘Airborne sound absorption measured in a reverberation chamber’. Test guidelines for type A mounting. The Armourcoat Acoustic® Plaster System achieved NRC ratings from 0.8, class C (30mm system) to 0.9, class A (50mm system).


    • Natural mineral system
    • Noise Reduction Coefficient (NRC) rating Class A-C
    • UK factory prepared base panels ready for immediate installation
    • Up to 200m2 in a continuous surface without joints
    • Mineral wool panels with 75% post-consumer recycled content
    • Basecoat made from expanded glass with 85% post-consumer recycled content
    • Topcoat made from 70% recycled pre-consumer marble
    • Fire rating Class 0 BS476 part 6&7
    • Contains no VOCs
    • Mineral wool panels have a lambda value of 0.032 W/mK to provide excellent thermal performance
    • 4 standard colours available. Other colours on request



Sound Made Simple

Acoustics Academy’s Sound Made Simple guide clarifies complex acoustic terminology with insights to design with sound.