Outstanding Dielectric
Properties ! Maintains a Dielectric Constant of 2.53 through 500Ghz with extremely low
dissipation factors. Ideal for microwave
lenses, microwave circuitry, antennae, coaxial cable connectors, sound transducers,
television satellite dishes and sonar lenses.
Other applications include nondestructive material
testing devices, surveillance equipment, radar windows, radomes and missile guidance
system housings. One interesting application for radar is mapping the Earth's surface
fast aircraft at high altitudes.
High Voltage Insulators Ability to withstand high voltage
is important for producing gap switch houses, capacitors and other components. Rexolite®
is proven superior to Acrylics, Epoxies, Urethanes and other plastics for dendritic
resistance. (Failure caused by electron bombardment).
Radiation Resistance Superior to most plastics. Little
change in dielectric loss over a wide range of exposures up to 1000M rads. Superior
resistance to mechanical deterioration by ionizing radiation.
Rigidity and Dimensional Stability Rexolite® exhibits no
permanent deformation or plastic flow under normal loads. All castings are stress-free,
and do not require stress relieving prior to, during or after machining.
Optical Transmission approximately equal to Acrylic -
(87% visible light, 1" thick). Refractive index 1.59 @ 589 nanometers, 1.604 @ 486
nanometers and 1.585 @ 656 nanometers. Utilized in combination with Acrylic lenses for
color correction.
Sound Transmitting Excellent acoustic properties having
an impedence close to water. Velocity 93 x 10³ inches per second. Ideal for sonar lenses.
Out Gassing Negligible at room temperatures Nasa values
at elevated temperatures are: Total Mass Loss (TML) .14/.16% Collected Volatile
Condensable Materials (CVCM) .02%
Water Absorption Less than .08%, type 1422, has been
immersed in boiling water for a 1000 hours without change in dielectric constant.
Machinability Handles well in all machining operations.
Tool configuration is similar to those used on Acrylic. Due to high resistance to cold
flow and freedom stress, it is easily machined or laser beam cut to very close
tolerances. Accuracies of .0001 can be obtained by grinding. Crazing can be avoided by
using sharp tools and avoiding excessive heat during polishing. Stress relieving is not
required before, during of after machining.
Chemical Resistance Alkalies, Alcohols, Aliphatic
Hydrocarbons and mineral acids have no effect. Aromatic & chlorinated hydrocarbons
cause swelling and should be avoided.
Light Weight 15% lighter than Acrylic and less than half of PTFE {Teflon). Specific Gravity
is 1.05.
Subzero Properties Maintains a Dielectric Constant of
2.55 dissipation factor. At -270 Centigrade the dissipation factor is .00019
Rexolite® Adhesive #12517 has been developed
especially for bonding Rexolite ® to itself.
Copper Cladding for printed circuit boards. Available in
Rexolite® 1422 or 2200 copper thicknesses ranges half ounce to two ounces copper.
Environmentally Friendly Non hazardous; contains no ingredients harmful to the environment.
Military Specification Rexolite® 1422 conforms to
military specification LP-516A,
type E2, formerly known as MIL-P-77C-E2.
Flammability Rexolite® 1422 burn rate is less than one
inch per minute.
Standard Shapes and sizes Rexolite® 1422 rod .030
to 9" in diameter. Rexolite® 1422 sheet .010 to 6" thick. Rexolite ®
2200 sheet 1/32" to 1/4" thick. Copper clad Rexolite® 1422 .010 to
1/4" substrate.
Copper Clad Rexolite® 2200
1/32" to 1/4" substrate. Rexolite® Adhesive #12517 one-ounce packets or a
1 pint can. Rings, tubes, large rods and sheets are available upon request.
Background of Cross Linked Polystyrene - Cross linked polystyrene was originally developed for the U.S. Military
during World War II for use in coaxial cable connectors. There were two manufacturers
sharing the market, Dow Chemical and General Electric.
Stress free castings more than 10 inches thick and 6 feet in diameter have been produced.
Rexolite®
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