Sealed Air Specialty Materials Document - Forman

Sealed Air Specialty Materials Document

Whisper™

SOUND ABSORBING POLYETHYLENE FOAM

Document Date
December 2012

1-

Executive Summary

Acoustic sound absorbing panels are used to control problems with noise and sound in all types of indoor and outdoor
environments. They make music sound better, allow people to speak and hear better and provide a safer work environment.
When you have external conditions to deal with like water, moisture, humidity, dirt, dust, ultraviolet light, chlorine air, and
most harsh chemicals to deal with your choice of acoustic solutions are reduced to just a few.
Products like Polyester lose performance when wet. Woodwool/cement products can weigh up to 40kgs/m2, making them
difficult to suspend. Bonded aggregates can often price themselves out of the market for large scale applications
Sealed Air Whisper™ is manufactured to perform in the most rigorous indoor, outdoor and industrial environments. It’s
washable, very durable, long lasting and usable in hundreds of areas and applications. 50mm Stratocell® Whisper™ has
Class A alpha w rating of 1.00. Whisper™ is available in black and natural. Thicknesses range from 20mm to 50mm in 1m x
2.4m sheet form.

Product Summary

Stratocell® Whisper™ is closed cell laminated cell polyethylene foam which has cells that are subsequently opened
through the manufacturing process, resulting in a highly efficient sound absorbent material with many unique features,
such as:
Superior noise control
Resilient to water and humidity
Flame retardant
Ethafoam® Whisper™ is closed cell polyethylene foam which has cells that are subsequently opened through the
manufacturing process, resulting in a highly efficient sound absorbent material with many unique features, such as:
Superior noise control
Resilient to water and humidity
Flame retardant
The Difference - Stratocell® is lighter weight, softer, and easier to bend. It also has the higher acoustic performance.
Ethafoam® is a full plank form, has better compression strength, and is stiffer for the rigid stand alone applications.

2-

Whisper™ Options

Material Size Alpha w Class

Stratocell® Whisper™ FR 50mm x 1m x 2.4m 1.00 A
Stratocell® Whisper™ FR 40mm x 1m x 2.4m 0.90 A
Stratocell® Whisper™ FR 25mm x 1.1m x 30m 0.55 D
Stratocell® Whisper™ FR 25mm x 1m x 2.4m 0.55 D
Stratocell® Whisper™ FR 20mm x 1m x 2.4m 0.45 D
Stratocell® Whisper™ UV 50mm x 1m x 2.4m 1.00 A
50mm x 1m x 2.4m 0.70 C
Ethafoam® Whisper™ 40mm x 1m x 2.4m 0.60 C
Ethafoam® Whisper™ 30mm x 1m x 2.4m 0.50 D
Ethafoam® Whisper™

Available in Black and Natural White

Whisper™ Advantages

Material source reduction. Can use lower thickness with Whisper
No need for a “water shield”
Easier fabrication
Easier fastening (double sided tape etc)
Low weight means light weight on structure and foundation
Fibre free
Excellent acoustic properties
Fire Reaction. Meets all required fire norms
Self standing/structurally independent

3-

Ethafoam® Whisper™ Performance

Stratocell® Whisper™ Performance

Reverberation Room Testing According to EN ISO 354

Sound Absorbtion Coefficent 1.20 Stratocell® Whisper™ 50mm
1.10 Stratocell® Whisper™ 40mm
1.00 Stratocell® Whisper™ 25mm
0.90 Stratocell® Whisper™ 20mm
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00

100
125
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

Frequncy (Hz)
4-

Stratocell® Whisper™ Data Sheet

Forman Insulation
Todd Lindsay 09 270 1912
Carolynne Phillips 027 246 6924
Chris wTwywso.fonrm0a2n7.co4.n3z2 3242

0800 45 4000

5-