Acoustical Surfaces, Inc.
Soundproofing, Acoustics, Noise & Vibration Control Specialists
We Identify and S.T.O.P. Your Noise Problems
123 Columbia Court North Suite 201
Chaska, MN 55318
Toll Free: (800) 470-6652 Noise Control Help Line
Tel: (952) 448-5300
Fax: (952) 448-2613
E-mail: sales@acousticalsurfaces.com
Web site: http://www.acousticalsurfaces.com

FOAM S.T.O.P SOUNDWAVE/DUAL WAVE^™
Polyurethane Foam Sound Absorber

High Performance Sound Absorber
Sound Wave Pattern
Fiber Free
Reduces Reverberation

MATERIAL:
Open Cell Polyurethane Acoustical Foam.

PATTERN:
Scientifically engineered pattern designed to absorb the widest range of frequencies.

FEATURES:
Effectively reduces reflected noise and reverberation times (echo) to produce safe and enjoyable environments.

APPLICATIONS:
Industrial, commercial, audio, OEM, residential, ceilings, walls, partitions, sound/recording studios, radio stations, band rooms, swimming pools, churches, schools, gun ranges, equipment enclosures.

THICKNESS:
1", 2", 3", 4".

SIZES:
2'×4', 4'×4'.

DENSITY:
2 lbs./cub. ft.

COLORS:
Brown, Blue, Charcoal, Beige, Hunter Green, Burgundy, Painted: Silver, Blue.

FLAMMABILITY:
1", 2", 3", UL94HF-1 Class B, 4" UL94HF-1 Class-C.

INSTALLATION:
ASI S.T.O.P Noise Acoustical Adhesive.

FOAM S.T.O.P: Sound Absorption / Noise Reduction per ASTM C4233-902
	125Hz	250Hz	500Hz	1KHz	2KHz	4KHz	NRC
1"	-	0.17	0.40	0.72	0.76	-	0.50
2"	0.15	0.31	0.73	1.04	1.08	1.12	0.80
3"	0.17	0.50	0.91	1.08	1.04	1.10	0.90
4"	0.32	0.93	1.43	1.33	1.29	1.21	1.25

Available as Hanging Acoustical Baffles

FOAM S.T.O.P: Soundwave Baffles C423-84a
	125Hz	250Hz	500Hz	1KHz	2KHz	4KHz	NRC
Sabins/Baffle	4.44	6.00	10.00	15.50	17.90	19.20	12.35