PORON 4790-92 polyurethane foam provides excellent protection for lower energy impacts. Softer and with a slow rebound, the material is conformable yet returns to its original shape, allowing for long-term performance.
Features
Thickness range of .53 to 12.7 mm (.021 to .5 in.)
Density range of 144 to 480 kg/m3 (9 to 30lb/ft3)
Conformable open cell material
Benefits
Long lasting and durable
Great for gap filling and gasketing or sealing applications
Distributes low energy impact
PROPERTY
TEST METHOD
VALUE
Density, kg/m³ (lb./ft³)
ASTM D 3574-95, Test A
240 (15)
320 (20)
400 (25)
Thickness, mm (inches)
1.00 – 3.05
(0.039 – 0.120)
2.06
(0.081)
0.53 – 1.04
(0.021 – 0.041)
Standard Color (Code)
Black (04)
Hardness, Durometer Shore O
ASTM D 2240-97
2
Compression Set, % max
ASTM D 1667-90 Test D @ 23°C (73°F)
2
ASTM D 3574-95 Test D
@ 70°C (158°F)
10
Resilience by Vertical Rebound, %
ASTM D 2632-96
4
5
—
Dielectric Constant, K’ (“DK”)
ASTM D 150 @ 22°C (72°F)
relative humidity 50% for 24 hrs
