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Specifications subject to change with out notice.

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

SOUND SILENCER™

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

Class A Fire Retardant
No Fiberglass – Non-Fibrous
Moisture Resistant Indoor
Impact Resistant
Water Resistant
Non-Abrasive Surface
Indoor/Outdoor
Both STC and NRC ratings
Tackable Surface
Bacteria and Fungi Resistant
Lightweight
Superior Soundproofing Qualities

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Charcoal Actual Size	White Actual Size

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icon to download product Spec sheet.

MATERIAL: Semi-Rigid Porous Expanded Polypropylene Acoustical Bead Foam (P.E.P.P.).
PATTERN: Non-Abrasive, Slightly Textured, Porous
FEATURES: Lightweight, Impact Resistant, Moisture, Bacteria & Fungi Resistant, Tackable Surface
APPLICATIONS: Gymnasiums, 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.
THICKNESS: 1″ & 2″
SIZES: Nominal 2′ × 2′, 2′ × 4′; Custom Sizes Available
COLORS: White, Charcoal
FLAMMABILITY: ASTM E84, Class A
1″ – Flame Spread: 3, Smoke Developed: 84
2″ – Flame Spread: 5, Smoke Developed: 113
INSTALLATION: ASI S.T.O.P. Noise Acoustical Adhesive, Mechanical Fasteners

*Note to all Installers
Sound Silencer™ PEPP is a thermal molded product and although tough to see one side of the 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 panel so panels should be installed with these marks facing the wall or ceiling for best possible aesthetical outcome.

Sound Silencer™ – Sound Absorption/Noise Reduction
Panel Thickness	Mount	125Hz	250Hz	500Hz	1KHz	2KHz	4KHz	NRC
1″	Wall – A Mount	0.05	0.06	0.21	0.80	0.65	0.75	0.45
1″	Wall – 3/4″ Airspace	0.06	0.13	0.51	0.79	0.62	0.79	0.50
1″	Wall – 1″ B.A.C.	0.11	0.58	1.07	0.71	0.74	0.72	0.80
2″	Wall – A Mount	0.07	0.21	0.81	0.85	0.93	0.88	0.70
2″	Wall – 3/4″ Airspace	0.10	0.29	0.99	0.74	0.90	0.93	0.75
2″	Wall – 1″ B.A.C.	0.17	0.81	0.97	0.85	0.89	0.92	0.90
1″	Ceiling – E400	0.46	0.59	0.42	0.49	0.76	0.86	0.55
2″	Ceiling – E400	0.51	0.52	0.52	0.77	0.89	0.98	0.70
1″	Wall – C423 12″ spacing	0.04	0.07	0.20	0.83	0.81	1.00	0.50
2″	Wall – C423 12″ spacing	0.09	0.21	0.82	1.11	1.11	1.12	0.80

Sound Silencer™ – Sound Transmission Loss (STC)
	125Hz	250Hz	500Hz	1KHz	2.5KHz	5KHz	STC
1″	6	5	7	8	10	15	9
2″	9	8	10	10	17	22	13
1″ w/ 5/8″ Gypsum Both Sides	27	27	29	31	32	45	32

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ASTM C423 – Sound Absorption 8 Panels – 1″ PEPP Arranged in 2 × 4 Fashion
with 12″ spacing between all panels

ASTM C423 – Sound Absorption 8 Panels – 2″ PEPP Arranged in 2 × 4 Fashion
with 12″ spacing between all panels

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