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PPS

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Technical Product Data Sheets

PPS (polyphenylene sulfide)
PPS GF-40 (polyphenylene sulfide glass-fiber reinforced)

Polyphenylene sulfide has inherent flame resistance, suprior electrical properties, and is non-hygroscopic. Dute to its heat deflection temperature, PPS GF-40 retains its mechanical properties up to 425°F. PPS GF-40 is a glass-fiber-reinforced semi-crystalline engineering thermoplastic capable of withstanding virtually all chemical contact up to 400°F. It is an excellent choice for corrosive, high-temperature applications which require the mechanical properties of a glass-reinforced thermoplastic.

Typical Values

Physical Properties ASTM Test Method Units PPS PPS GF-40
Density D792 —- .0506 .0592
Specific Gravity D1505 lbs/cu in 1.4 1.64
Water absorption, 24 hours, 73°F (23°C) D570 % .03 .03
Mechanical Properties ASTM Test Method Units PPS PPS GF-40
Tensile Strength  73°F D638 psi 12,500 17,500
Elongation, 73°F D638 % 3 – 6 1.35
Flexural Strength, 73°F D790 psi 21,000 25,000
Flexural Modulus, 1% Secant, 73°F D790 psi 600,000 1,800,000
Izod Impact Strength, Notched, 73°F D256 ft-lbs/in. 0.5 1.0
Rockwell Hardness D785 “M” Scale 93 100
Thermal Properties ASTM Test Method Units PPS PPS GF-40
Deflection Temp.
@ 66 psi 
@262 psi
D648
D648
°F
°F
392
221
536
509
Max. Temp. 
Long Term 
Short Term
—-
—-
°F
°F
220
—-
392
500
Coefficient of Linear Thermal Expansion
-20°F – 200°F
200°F -460°F
D696
D696
in./in./°F
in./in./°F
2.3 X 10-5
4.4 X 10-5
1.2 X 10-5
2.7 X 10-5
Electrical Properties ASTM Test Method Units PPS PPS GF-40
Dielectric Strength D149 V/mil 450 450
Dielectric Constant, 60 Hz, 73°F, 50% RH D150 —- 3.0 3.6
Volume Resistivity, 73°F D257 ohm-cm 1016 1016

Material Availability:

Rods: Length: 10 feet  – Diameters 1/4″ to 6″
Plates: 1/4″ inch to 2 inch thickness inclusive are 24 X 48 inches
2 1/4″ to 4″ thickness inclusive are 12 X 48 inches

Profiles, tubes and special sizes are custom-produced on request

This information is only to assist and advise you on current technical knowledge and is given without obligation or liability. All trade and patent rights should be observed. All rights reserved.

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