PROPERTIES
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Outstanding! 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
from fast aircraft at high altidudes.
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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 dendriting resistance. (Failure
caused by electron bombardment).
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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.
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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.
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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.
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Excellent acoustic properties having an impedence close
to water. Velocity 93 x 10³ inches per second.
Ideal for sonar lenses.
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Negligible at room temperatures Nasa values at elevated
temperatures are: Total Mass Loss (TML) .14/.16%
Collected Volatile Condensable Materials (CVCM) .02%
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Less than .08%, type 1422, has been immersed in boiling
water for 1000 hours without change in dielectric constant.
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Handles well in all machining operations. Tool configuration
is similar to those used on Acrylic. Due to high resistance
to cold flow and freedom from 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.
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Alkalies, Alcohols, Aliphatic Hydrocarbons and
mineral acids have no effect. Aromatic & chlorinated
hydrocarbons cause swelling and should be avoided.
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15% lighter than Acrylic and less than half of TFE {Teflon).
Specific Gravity is 1.05.
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Maintains a Dielectric Constant of 2.55 dissipation factor.
At -270 Centigrade the dissipation factor is .00019
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Rexolite® Adhesive #12517 has been
developed
especially for bonding
Rexolite® to itself.
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For printed circuit boards. Available in Rexolite®
1422 or 2200 copper thicknesses ranges from half
ounce to two ounces copper.
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Nonhazardous; contains no ingredients harmful
to the environment.
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Rexolite® 1422 conforms to military specification LP-516A,
type E2, formerly known as MIL-P-77C-E2.
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Rexolite® 1422 burn rate is less than one inch per minute.
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Rexolite® 1422 rod from .030 to 9" in diameter.
Rexolite® 1422 sheet from .010 to 6" thick.
Rexolite® 2200 sheet from 1/32" to 1/4" thick.
Copper clad Rexolite® 1422 from .010 to 1/4" substrate.
Copper clad Rexolite® 2200 from 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.
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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.
After the war, Dow Chemical passed their manufacturing
rights of Q200.5 to the Polymer Corporation and General Electric
sold their Texolite 1422 production facility to the Rex Corporation.
The Rex Corporation chaged the name Texolite to
Rexolite® and registered the trade name. It then passed in
succesion to Brand Rex, Dodge Industries, Oak Materials,
and Norplex Oak. With all these Manufacturers, the
production of Rexolite® was limited to sheets up to two
inches thick and rods up to four inches in diameter.
During the early 1960's, C-Lec Plastics developed
a process to produce stress free sheets up to 6 inches thick
and rods up to 8 inches in diameter, creating a new market
for cross linked polystyrene. C-Lec marketed this material as Dielco 100.
In the mid 1970's, Norplex Oak terminated production
of Rexolite® and passed the Trade Name rights to C-Lec Plastics .
Additionally,in the mid 1990's the Polymer Corporation
ceased the productionof their Q200.5
C-Lec has continued to improve production techniques
through research and development and with computer control.
Stress free castings more than 10 inches thick and 6 feet in
diameter have been produced.
® Trade Name registered by C-Lec Plastics Inc.
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