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.REXOLITE is a registered trademark of C-Lec Plastics Company
All values at 73°F (23°C) unless otherwise noted.
©
Copyright Boedeker Plastics, Inc.
2008