E-A-R Specialty Composites

SuperSheet Foams

SuperSheet™ materials are low-density polyurethane foams featuring excellent water resistance characteristics and physical properties that make them ideal for gasketing and sealing applications.

SuperSheet foams compress with relatively little pressure, allowing their use in lightweight assemblies. With very low compression set, the materials provide an excellent alternative to EPDM seals.

ENLARGE IMAGE

Typical Properties (English Table)

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Product
(Complete Product Catalog)

3mm

6mm

10mm

3.5mm

5mm

10mm

5mm

6mm

10mm

5mm

6mm

Density Nominal (pcf)
ASTM D3574

3.8

3.4

3.2

4.0

3.8

3.6

3.7

3.6

3.5

3.8

3.5

Hardness
ASTM D2240
15 sec post impact, Shore OO

—

Flammability
FMVSS-302

—

Meets

—

Meets

—

Meets

—

Brittleness Temp. (F)
ASTM D746

-76

—

-67

—

-53

—

-53

—

Tensile Strength (psi)
ASTM 3574

Elongation (%)
ASTM D3574

208

194

198

114

105

104

115

106

101

114

Tear Strength (lb/in)
ASTM D624

5.4

4.4

4.7

3.9

3.7

4.7

4.9

4.5

5.0

4.8

4.3

Compression Set
(% original height)
50% Deflection
ASTM D1667
22 hr @ 73F
ASTM D3574
22 hr @ 58F

—

—

2.3

9.1

—

—

1.8

6.2

—

—

2.9

7.8

—

—

2.6

8.0

Water Absorption
(% weight gain)
ASTM D570
24 hr immersion

—

5.2

—

6.0

—

6.9

—

4.9

Sealability
Maintain water-tight seal 1 hour minimum
73 F GM6086M

Yes

—

Yes

—

Yes

—

Yes

—

Compression Load
Deflection (psi)
ASTM D3574

25% Deflection

—

0.85

—

1.8

—

2.3

—

2.2

50% Deflection

—

1.4

—

2.8

—

5.1

—

3.7

RoHS Compliant

Yes

The data listed in this materials summary are typical or average values based on tests conducted by independent laboratories or by the manufacturer. They are indicative only of the results obtained in such tests and should not be considered as guaranteed maximums or minimums. Materials must be tested under actual service to determine their suitability for a particular purpose.