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I. Stern U278 General Purpose Crystal Polystyrene
(discontinued **)
Categories:
Polymer
;
Thermoplastic
;
Polystyrene (PS)
;
Polystyrene, Transparent Grade
Material Notes:
Features:
Easy Flow
Excellent Process Properties
Applications
Displays
Toys, Cosmetics
Agency Ratings
FDA Title 21 CFR 177.1640
UL File E185934
Information provided by I. Stern & Co. Inc.
I. Stern & Co. Inc. has been acquired by Ravago.
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Physical Properties
Metric
English
Comments
Melt Flow
10
g/10 min
10
g/10 min
ASTM D1238
Mechanical Properties
Metric
English
Comments
Tensile Strength, Yield
39.0
MPa
5660
psi
ASTM D638
Elongation at Break
1.5 %
1.5 %
ASTM D638
Flexural Strength
89.6
MPa
13000
psi
ASTM D790
Flexural Modulus
3.14
GPa
455
ksi
ASTM D790
Izod Impact, Notched
0.214
J/cm
0.400
ft-lb/in
ASTM D256
Thermal Properties
Metric
English
Comments
Deflection Temperature at 1.8 MPa (264 psi)
75.0
°C
167
°F
ISO
Vicat Softening Point
86.1
°C
187
°F
ISO
Flammability, UL94
HB
@Thickness 1.50 mm
HB
@Thickness 0.0591 in
HB
@Thickness 3.00 mm
HB
@Thickness 0.118 in
Compliance Properties
Metric
English
Comments
FDA
Yes
Yes
See notes for details.
**
Materials flagged as discontinued (
) are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.
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PISTER909B / 249335
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