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3D-CAM POLYSTYRENE

PHYSICAL PROPERTIES

Density 0.0376-0.0387 lb/in3
Water Absorption 0-0.1 %
Moisture Absorption at Equilibrium 0.04-0.1 %
Water Absorption at Saturation 0.1 %
Linear Mold Shrinkage 0.004-0.006 in/in
Melt Flow 1.2-28 g/10 min

MECHANICAL PROPERTIES

Hardness, Rockwell M 70-74
Hardness, Rockwell R 104-120
Tensile Strength, Ultimate 2600-10200 psi
Tensile Strength, Yield 3630-10000 psi
Elongation @ break 1-45 %
Elongation @ Yield 1.5-2.2 %
Tensile Modulus 260-490 ksi
Flexural Modulus 390-479 ksi
Flexural Yield Strength 7830-15000 psi
Compressive Yield Strength 13100 psi
Poisson’s Ratio 0.33
Izod Impact, Notched 0.2- 2.38 ft-lb/in
Izod Impact, Unnotched 2.06 ft-lb/in
Izod Impact, Notched Low Temp 1.31 ft-lb/in
Charpy Impact, Unnotched 3.81-13.3 ft-lb/in2
Charpy Impact, Notched Low Temp 0.476-0.952 ft-lb/in2
Charpy Impact, Unnotched Low Temp 4.28-4.76 ft-lb/in²
Charpy Impact, Notched 0.952-1.9 ft-lb/in²
Gardner Impact 4.43 ft-lb
Tensile Creep Modulus, 1 hour 334000-479000 psi
Tensile Creep Modulus, 1000 hours 319000-377000 psi

ELECTRICAL PROPERTIES

Electrical Resistivity 1E+15-1E+17 ohm-cm
Dielectric Constant 2-2.8
Dielectric Constant, Low Frequency 2-2.8
Dielectric Strength 500-3430 kV/in
Dissipation Factor 0.00005-0.0004
Dissipatin Factor, Low Frequency 0.00009-0.0004
Surface Resistance 1E+13-1E+15 ohm
Arc Resistance 100-180 sec
Comparative Tracking Index 350-600 V
Hot Wire Ignition, HWI 15 sec
High Amp Arc Ignition, HAI 120 arcs
High Voltage Arc-Tracking Rate, HVTR 4.72-11.8 in/min

THERMAL PROPERTIES

CTE, linear 200 C 27.8-69.4 µ in/in-°F
CTE, linear 20° C Transverse to Flow 38.9-50 µ in/in-°F
Heat Capacity 0.287-0.502 BTU/lb-°F
Thermal Conductivity 0.833-1.34 BTU-in/hr-ft²-°F
Melting Point 374-500°F
Maximum Service Temperature, Air 156-196°F
Deflection Temperature at 0.46 MPa 172-217°F
Deflection Temperature at 1.8 MPa 156-210°F
Vicat Softening Point 33.9-230°F
Glass Temperature 181-212°F
Flammability, UL94 HB
Oxygen Index 18-19%

OPTICAL PROPERTIES

Haze 0.65-1%
Transmission, Visible 80-90%

PROCESSING PROPERTIES

Processing Temperature 392-424°F