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Rexolite® Cross-Linked
Polystyrene Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

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GENERAL PROPERTIES
Rexolite® is a unique cross-linked polystyrene, microwave plastic. This material's most notable properties are it's unusually stable electrical properties into the Giga-hertz frequency range. It is also optically clear (approximately the same as Acrylic), dimensionally stable, and excellent sound transmission characteristics.

As a result, Rexolite® is often used for high-frequency circuit substrates, microwave components, and lenses with acoustic, optical and radio-frequency applications.

REXOLITE® GRADES
Rexolite® 1422 - unfilled
Unfilled Rexolite® 1422 is chemically resistant, light weight, resists water absorption, and has negligible outgassing.

Rexolite® 2200 - glass-filled
Glass reinforced Rexolite® 2200 provides greater rigidity and dimensional stability while maintaining many of the useful characteristics of basic Rexolite®. The glass reinforcement yields a product with an exceptional strength-to-weight ratio and increased tensile strength.

Rexolite® copper-clad
For use in electronic circuits, both Rexolite® 1422 and 2200 may be ordered in sheet thicknesses to 1/4" with copper-clad surface in thicknesses ranging from 1/2-ounce to 2-ounce copper.

TYPICAL APPLICATIONS
• microwave lenses • microwave circuitry • antennae • coaxial cable connectors • sound transducers • TV satellite dishes • sonar lenses • nondestructive material testing devices • surveillance equipment • radar windows • radomes • missile guidance system housings

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TYPICAL PROPERTIES of REXOLITE®

ASTM or UL test Property Rexolite® 1422
unfilled
Rexolite® 2300
glass-filled
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.038
1.05
0.042
1.11
D570 Water Absorption, 24 hrs (%) 0.0008 0.10
MECHANICAL
D638 Tensile Strength (psi) 9,000 9,500
D638 Flexural Strength (psi) 11,500 10,500
D256 IZOD Notched Impact (ft-lb/in) 0.3 0.75
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
3.8 3.2
D648 Recommended Operating Temperature Range
(°F)
(°C)

-76 to +212
-60 to +100

-103 to +212
-75 to +100
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

1.01
3.5

1.45
5.0
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, 1/8" thick 500 500
D150 Dielectric Constant (1 MHz to 500 GHz) 2.53 2.62
D150 Dissipation Factor
at 1 MHz
at 10 MHz
at 10 GHz

0.00012
0.00025
0.00066

0.0004
0.0005
0.0014
D257 Surface Resistivity (ohm-cm)at 50% RH >1014 5 x 1012
D257 Volume Resistivity (ohm-cm)at 50% RH >1016 5 x 1013
OPTICAL AND ACOUSTIC
- Acoustic Impedance 2.5 -
- Velocity of Sound (in/sec) 93,000 -
- Optical Transmittance, Visible Light 87% -
- Refractive Index
@ 589 nM
@ 486 nM
@ 656 nM

1.59
1.604
1.585

-
-
-
- Velocity of Sound (in/sec) 93,000 -

NOTE: The information contained herein 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.
REXOLITE is a registered trademark of C-Lec Plastics Company
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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

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