Interlayer Property Database
Compare mechanical and physical properties of laminated glass interlayers. Shear modulus values are computed via WLF time-temperature superposition at each EN 16613:2019 standard loading condition. All data is free to use.
Ionomer
Ionomer Family
Density
950 kg/m³
Poisson's ratio
0.47825
Tensile strength
34.5 MPa
Elongation at break
400.0%
Adhesion
High
Test standard
ASTM D638
Ionomer Xtra
Ionomer Family
Density
950 kg/m³
Poisson's ratio
0.47825
Tensile strength
34.5 MPa
Elongation at break
400.0%
Adhesion
High
Test standard
ASTM D638
PVB Clear
PVB Family
Density
1070 kg/m³
Poisson's ratio
0.475
Tensile strength
25.0 MPa
Elongation at break
266.0%
Adhesion
Medium
Test standard
ISO 527-3
PVB Extra Stiff
PVB Family
Density
1080 kg/m³
Poisson's ratio
0.475
Tensile strength
33.0 MPa
Elongation at break
196.0%
Adhesion
High
Test standard
ISO 527-3
PVB Extra Stiff PRO
PVB Family
Density
1080 kg/m³
Poisson's ratio
0.475
Tensile strength
34.0 MPa
Elongation at break
200.0%
Adhesion
High
Test standard
ISO 527-3
Saflex
Interlayer
Density
1070 kg/m³
Poisson's ratio
0.475
Tensile strength
25.0 MPa
Elongation at break
250.0%
Adhesion
Medium
Test standard
N/A
Sound Control Monolayer
Acoustic PVB
Density
1070 kg/m³
Poisson's ratio
0.47825
Tensile strength
22.0 MPa
Elongation at break
250.0%
Adhesion
High
Test standard
ISO 527-3
Shear Modulus at EN 16613 Standard Conditions
G(t) in MPa, interpolated via Williams-Landel-Ferry (WLF) time-temperature superposition from master curve data.
| Material | 3 s / 35°C | 10 min / 35°C | 30 s / 30°C | 30 min / 40°C | 3 wk / 0°C | 12 h / 60°C | 50 yr / 60°C |
|---|---|---|---|---|---|---|---|
| Ionomer | 102.0 | 47.7 | 119.0 | 11.4 | 222.0 | 1.35 | 0.740 |
| Ionomer Xtra | 70.3 | 22.0 | 84.6 | 7.00 | 75.1 | 0.610 | 0.090 |
| PVB Clear | 0.510 | 0.320 | 0.510 | 0.200 | 1.36 | 0.060 | 0.060 |
| PVB Extra Stiff | 5.76 | 0.780 | 9.83 | 0.610 | 4.41 | 0.160 | 0.160 |
| PVB Extra Stiff PRO | 24.2 | 0.880 | 25.0 | 0.600 | 278.3 | 0.180 | 0.180 |
| Saflex | 8.30 | 0.570 | 11.0 | 0.400 | 552.1 | 0.240 | 0.240 |
| Sound Control Monolayer | 0.370 | 0.180 | 0.340 | 0.090 | 0.410 | 0.040 | 0.040 |
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