Unit A, 21/F, KP Tower, 93 King’s Road, North Point, Hong Kong(852) 2911 0103

Sound Silencer Acoustical Wall & Ceiling Tile Panel

SOUND SILENCER™ Porous Expanded Polypropylene (P.E.P.P.) Acoustical Wall and Ceiling Tile Panels

Sound Silencer™ panels are easily installed for improving sound control in many environments. Sound Silencer™ is non-fibrous; class A fire retardant, non-abrasive, water resistant, impact resistant, lightweight, mold bacteria and fungi resistant. These panels have both a NRC and STC rating, a tackable surface and can be used indoors or outdoors. Sound Silencer™ can be used as a ceiling title, wall panel, outdoor barrier or hanging baffle.


  • Class A Fire Retardant
  • No Fiberglass-Non-Fibrous
  • Moisture Resistant Indoor
  • Non-fibrous
  • Impact Resistant
  • Water resistant
  • Non-abrasive surface
  • Indoor/Outdoor
  • Both STC and NRC ratings
  • Tackable surface
  • Bacteria and fungi resistant
  • Lightweight
  • Superior Soundproofing Qualities​
MaterialRigid Porous ARPRO® Acoustical (P.E.P.P.) Planks
PatternNon-Abrasive, Slightly Textured, Porous Sound Panel
FeaturesLightweight, Impact Resistant, Moisture, Bacteria & Fungi Resistant, Tackable Surface
ApplicationsGymnasiums, Auditoriums, Classrooms, Swimming Pools, Ice Arenas, Clean Rooms, Food Processing Plants, Food Prep Areas, Cafeterias & Restaurants, Manufacturing Plants, Car Washes, Rooftop and Machine Enclosures, Gun Ranges, Dog Kennels, Locker Rooms.
Thickness1″ & 2″
SizesExact Cut: 24″ × 24″, 24″ × 48″
Nominal: 23¾″ × 23¾″, 23¾″ × 47¾″
Custom Sizes Available – Maximum Panel Size: 25″ × 49″ (Minimum quantities apply – call for details)
ColorsWhite, Charcoal
FlammabilityASTM E84, Class A
1″ – Flame Spread: 3, Smoke Developed: 84
2″ – Flame Spread: 5, Smoke Developed: 113
InstallationASI S.T.O.P. Noise Acoustical Adhesive, Mechanical Fasteners
*Note to all Installers
Sound Silencer™ PEPP is a thermal-molded acoustical sound panel. Although tough to see, one side of the sound suppressor panel will have injection and mold release marks these are circular marks that range in size and indent depth. These marks denote the back side of the cleanable acoustical sound panel so panels should be installed with these marks facing the wall or ceiling for best possible aesthetical outcome.


Acoustical Performance:

Sound Silencer™ – Sound Absorption/Noise Reduction
Panel ThicknessMount125Hz250Hz500Hz1KHz2KHz4KHzNRC
1″Wall – A Mount0.
1″Wall – 3/4″ Airspace0.060.130.510.790.620.790.50
1″Wall – 1″ B.A.C.0.110.581.070.710.740.720.80
2″Wall – A Mount0.070.210.810.850.930.880.70
2″Wall – 3/4″ Airspace0.100.290.990.740.900.930.75
2″Wall – 1″ B.A.C.0.170.810.970.850.890.920.90
1″Ceiling – E4000.460.590.420.490.760.860.55
2″Ceiling – E4000.510.520.520.770.890.980.70
1″Wall – C423 12″ spacing0.
2″Wall – C423 12″ spacing0.090.210.821.


Sound Silencer™ – Sound Transmission Loss (STC)
1″ w/ 5/8″ Gypsum
Both Sides
Color Options & Product Photos