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Thermalux® PSU

Thermalux® Polysulfone (PSU) is made from resin that is suitable for use in certain food contact applications, contact your local Westlake Plastics representative for specific regulatory declarations. Thermalux PSU is an amber colored, semi-transparent, heat-resistant, high performance engineering thermoplastic that offers higher heat resistance and better hydrolytic stability than polycarbonate (PC). It retains its good mechanical properties when exposed to steam and other sterilization techniques.

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Typical Properties

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Property	Test Standard	English Units	Metric Units
Mechanical
Flexural Modulus	D790	390 kpsi	2690 MPa
Flexural Strength - 5%	D790	15 kpsi	106 MPa
Izod Impact Resistance - Notched	D256	1.29 ft-lb/in	69 J/m
Tensile Elongation @ Break	D638	50-100%	50-100%
Tensile Modulus	D638	359.7 kpsi	2480 MPa
Tensile Strength @ Break	D638	10.2 kpsi	70 MPa
Thermal
HDT @ 264 psi	D648	345°F \|	174°C
Physical
Moisture Absorption	D570	0.030%	0.030%
Specific Gravity	D792	1.24	1.24
Electrical
Volume Resistivity	D257	1 x 10¹⁶ ohm-cm	1 x 10¹⁶ ohm-cm
*Data above is based on testing of injection molded test specimens

Rod Sizing

Sheet Sizing

Film Sizing

48"L

2.25" (57.15mm)

2.5" (63.5mm)

2.75" (69.85mm)

3" (76.2mm)

3.25" (82.55mm)

3.5" (88.9mm)

3.75" (95.25mm)

4" (101.6mm)

96"L

0.5" (12.7mm)

0.75" (19.05mm)

1" (25.4mm)

1.25" (31.75mm)

1.5" (38.1mm)

1.75" (44.45mm)

2" (50.8mm)

Slab Sizing

"L x 24"W

0.25" (6.35mm)

0.375" (9.53mm)

0.5" (12.7mm)

0.75" (19.05mm)

1" (25.4mm)

1.25" (31.75mm)

1.5" (38.1mm)

1.75" (44.45mm)

Compression Sheet Sizing

48"L x 24"W

0.375" (9.53mm)

0.5" (12.7mm)

0.75" (19.05mm)

1" (25.4mm)

1.25" (31.75mm)

1.5" (38.1mm)

1.75" (44.45mm)

2" (50.8mm)

96"L x 48"W

0.375" (9.53mm)

0.5" (12.7mm)

0.75" (19.05mm)

1" (25.4mm)

1.25" (31.75mm)

1.5" (38.1mm)

1.75" (44.45mm)

2" (50.8mm)

Extruded Sheet Sizing

96"L x 48"W

0.03" (0.76mm)

0.035" (0.89mm)

0.06" (1.52mm)

0.062" (1.57mm)

0.08" (2.03mm)

0.09" (2.29mm)

0.095" (2.41mm)

0.125" (3.18mm)

0.1875" (4.76mm)

0.25" (6.35mm)

26"W

0.002" (0.05mm)

0.003" (0.08mm)

0.004" (0.1mm)

0.005" (0.13mm)

0.010" (0.25mm)

0.020" (0.51mm)

Documentation

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Thermalux® PSU

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