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Polystyrene (PS) is a thermoplastic designed for applications requiring excellent electrical and mechanical properties together with good processability. Polystyrenes have well-balanced physical properties and are generally transparent, but available in various colors.
Cross-linked polystyrene copolymer is a rigid, transparent, and colorless material with outstanding electrical properties, including low dielectric losses up to very high frequencies, and very high radiation resistance. Compared to normal polystyrene, it is harder and somewhat more temperature resistant. Cross-linked polystyrene has good dimensional stability, can be easily machined, and polishes to a high optical quality.
Rexolite® brand is a cross-linked polystyrene, microwave plastic. It’s most notable properties are unusually stable electrical properties into the giga-hertz frequency range. It is also optically clear (approximately the same as acrylic), dimensionally stable, and possesses excellent sound transmission characteristics. Grades include glass. Rexolite® may be ordered in sheet thicknesses to 1/4″ with copper-clad surface in thicknesses ranging from 1/2-ounce to 2-ounce copper.
Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative with the form below.
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Polystyrene, Crosslinked, Unfilled
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|Sheet||1/4″ – 1-1/2″ TH||24″ x 48″; CTS||Translucent|
|Rod||1″ – 8″ DIA||8’ long; CTS||Translucent|
Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.
|Water Absorption, 24 hrs||%||D570||0.0008|
|Tensile Strength||psi||D638||7,980 – 10,200|
|Tensile Elongation @Break||%||D638||3 – 5|
|Hardness, Rockwell R||D785||R110 – 120|
|IZOD Impact Strength Notched||ft-lb/in||D256||0.3|
|Coefficient of Linear Thermal Expansion||(x 10⁻⁵in./in./°F)||D256||3.8|
|Max Operating Temp||°F||D648||-76 to +212|
|Dielectric Strength @1/8″ th.||V/mil||D149||500|
|Dielectric Constant, 1 MHz to 500 GHz||D150||0.00025|
|Surface Resistivity @ 60 Hz||ohms/sq||D257||>10¹⁴|
|Volume Resistivity, 50% RH||ohm-cm||D257||>10¹⁶|
|Refractive Index. @486 nM||%||1.604|
|Velocity of Sound||in/sec||93000|
NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.
NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.