Geofoam Physical Properties

Physical Properties of Foam-Control EPS Geofoam1,2

TYPE - ASTM D6817 EPS12 EPS15 EPS19 EPS22 EPS29 EPS39 EPS46
Density, min. lb/ft3
(kg/m3)
0.70
(11.2)
0.90
(14.4)
1.15
(18.4)
1.35
(21.6)
1.80
(28.8)
2.40
(38.4)
2.85
(45.7)
Compressive resistance
@ 1% deformation, min.
psi
psf
(kPa)
2.2
320
(15)
3.6
520
(25)
5.8
840
(40)
7.3
1050
(50)
10.9
1570
(75)
15.0
2160
(103)
18.6
2680
(128)
Elastic Modulus psi
(kPa)
220
(1500)
360
(2500)
580
(4000)
730
(5000)
1090
(7500)
1500
(10300)
1860
(12800)
Flexural Strength min. psi
(kPa)
10.0
(69)
25.0
(172)
30.0
(207)
35.0
(240)
50.0
(345)
60.0
(414)
75.0
(517)
Water Absorption by total
immersion, max.,
volume % 4.0 4.0 3.0 3.0 2.0 2.0 2.0
Oxygen Index,
min.,
volume % 24.0 24.0 24.0 24.0 24.0 24.0 24.0
Buoyancy Force lb/ft3
(kg/m3)
61.7
(990)
61.5
(980)
61.3
(980)
61.1
(980)
60.6
(970)
60.0
(960)
59.5
(950)

Additional Properties for Compressible Applications

 
Compressive Resistance
@ 5% deformation, min.
psi
psf
(kPa)
5.1
730
(35)
8.0
1150
(555)
13.1
1890
(90)
16.7
2400
(115)
24.7
3560
(170)
35.0
5040
(241)
43.5
6260
(300)
Compressive Resistance
@ 10% deformation, min.
psi
psf
(kPa)
5.8
840
(40)
10.2
1470
(70)
16.0
2300
(110)
19.6
2820
(135)
29.0
4180
(200)
40.0
5760
(276)
50.0
7200
(345)
 1 Consult Foam-Control EPS brochure for thermal performance characteristics and use limitations.
2 Custom density EPS Geofoam can be provided.

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