LIGHTWEIGHT NOISE ABSORBERS

POLYURETHANE FOAM is an acousical polyester
polyurethane open cell foam, 2 lb/ft3 density, supplied
either unfaced or film faced.

FEATURES:

• High noise absorption
• Lightweight and flexible
• Film faced styles resist dirt, dust, oils and moisture
• Die cut parts and pressure sensitive adhesive available
ACOUSTICAL PROPERTIES
Noise Absorption   (ASTM C-4-23)
PART NO. DESCRIPTION FACING FREQUENCY (Hz)
125 250 500 1K 2K 4K NRC
U635 1/4" Thk x 54" x 200' None .04 .100 .08 .24 .39 .77 .20
U127 1/2" Thk x 54" x 100' None .08 .11 .29 .35 .66 1.00 .35
U254 1" Thk x 54" x 100' None .10 .28 .71 1.00 .91 .95 .70
U508 2" Thk x 54" x 50' None .15 .35 .65 .90 .98 .100 .75
U127M 1/2" Thk x 54" x 100' Aluminized Mylar .03 .100 .44 .56 .31 .77 .35
U254M 1" Thk x 54" x 100' Aluminized Mylar .08 .44 .88 .56 .69 .55 .60
U254T 1" Thk x 54" x 100' Charcoal Tedlar .08 .60 .69 .70 .77 .61 .70
U254U 1" Thk x 54" x 100' Black Urethane .10 .50 .76 .63 .65 .46 .65
U254PV 1" Thk x 54" x 100' Perforated Vinyl .08 .20 .42 .95 1.00 .91 .65
MECHANICAL PROPERTIES
PROPERTY TEST METHOD RESULT
Density ASTM D-3574 1.9 Lbs/Ft3

Tensile
(Foam)
(1/2 mil Mylar)
(1 1/2 mil Tedlar)
ASTM D-3574
ASTM D-882
ASTM D-882
18 PSI
15.0 Lbs/Lin In
1.0 Lbs/Lin In
Compression Set (50%) ASTM D-882 10% Maximum
Thermal Conductivity K Factor .26
Service Temperature   -40°F to 200°F
Flammability
(Foam)
(Foam/Facing)
UL94
DOT MVSS 302
HF1
Pass

NOTE: "-PSA" added to part number signifies pressure sensitive adhesive backing

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FIBERGLASS noise absorbers are lightweight, flame resistant, quilted blankets, faced with grey aluminized vinyl coated fiberglass cloth.

FEATURES:

• High noise absorption
• Resists oils, grease, dust, moisture,
•  mild acids and alkalies
• Low flame and smoke ASTM-E84 (class A)
• Sewn edge binding
ACOUSTICAL PROPERTIES
Noise Absorption    (ASTM C-423)
PART NO. DESCRIPTION FACING FREQUENCY (Hz)
125 250 500 1K 2K 4K STC
G254F 1" Thick x 48" x 50' Rolls Cloth .05 .46 .92 .83 .58 .27 .70
G508F 2" Thick x 48" x 25' Rolls Cloth .35 .78 .88 .74 .54 .29 .74

MECHANICAL PROPERTIES
PROPERTY TEST METHOD RESULT
Density ASTM C-167 2 Lbs/Ft3

K Factor

 ASTM C-177 .25
Tear Strength ASTM D-1117 Warp 8 lbs/In  Fill 4 Lbs/In
Break Strength ASTM D-1682 Warp 120 Lbs/In  Fill 100 Lbs/In
Service Temperature   -40°F to 220°F (Glass 450°F)
Flammability
 ASTM E-84 Flame Spread 7
Smoke Density 5
Fuel Contribution 20


 

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O'Neill Industrial Corporation, 105 Commerce Circle, Durham, CT 06422
PHONE (860) 349-8988 • FAX (860) 349-8986
Email: oneill.industrial@snet.net

© 1999, O'Neill Industrial Corporation