Properties

PLEXIGLAS
SOUNDSTOP^®  
XT

PLEXIGLAS
SOUNDSTOP^®
GS, GS CC

PLEXIGLAS
SOUNDSTOP^®
NT

Unit

Test
method

Mechanical

Apparent density

1.19

1.19

1.67

g/cm³

ISO 1183

Weight at
sheet thickness
12 mm
15 mm
20 mm
25 mm

 
 
–
17.8
23.8
29.7

 
 
–
17.8
23.8
29.7

 
 
20.0
–
–
–

 
 
kg/m²
kg/m²
kg/m²
kg/m²

Tensile strength

70

70

37

MPa

ISO
527-2/1B/5

Elongation at break

5

5

2

%

ISO
527-2/1B/5

Flexural strength

98

98

62

MPa

ISO 178

Elastic modulus

3,300

3,300

7,200

MPa

ISO
527-2/1B/5

Acoustical

Weighted sound
reduction index 
DL_R

EN 1793-2/
ZTV-Lsw 88

12 mm
15 mm
20 mm
25 mm

–
30
32
33

–
30
32
33

30
–
–
–

dB
dB
dB
dB

Optical

Light transmission of
clear-transparent
sheets

92

92

0

%

DIN 5036

Thermical

Coefficient of linear
thermal expansion
0 to 50 °C

70^. 10^-6

70^. 10^-6

35^. 10^-6

1/K

DIN
53752-A

Max. permanent
service temperature

70

70

70

°C

–

Vicat softening
temperature

102

110

105

°C

ISO
306/B50