Castable epoxy resin that remains rigid when cured
ECCOSORB
®
CR will duplicate the physical and
electrical properties of its counterpart in the
ECCOSORB
®
MF series. For example, ECCOSORB
®
CR-117 is the equivalent to ECCOSORB
®
MF-117
Frequency range from 1 - 18 GHz
Dark Gray in color
Low out-gassing properties for space applications
Typical Properties
Service Temperature, °F (°C)
Specific Gravity
Thermal Expansion Coefficient (°C)
Izod Impact, ft-lb/in of notch (ergs/cm)
Water Absorption, %, 7 days immersion
Flexural Strength, psi (kg/cm
2
)
<356 (<180)
1.6 to 4.6
30 x 10
-6
0.3 (1.6 x 10
6
)
0.1
15,000 (1050)
0.08 - 0.51
0.001 - 0.01
6 months
Applications
•
•
%TML
%CVCM
Shelf Life at temp. no higher than 77 °F
ECCOSORB
®
CR can be used to mold waveguide
terminations, attenuators, and loads to size
ECCOSORB
®
CR can also be used to precisely pot small
amounts of absorber in or around areas of RF leakage
Shipping & Availability
•
•
•
•
ECCOSORB
®
CR is available in six castable versions,
CR-110, CR-112, CR-114, CR-116, CR-117, & CR-124
ECCOSORB
®
CR is supplied as a two part system
consisting of a Component X and Component Y in 2
pound (quart) and 5 pound (gallon) kits
Both CR-117 and CR-124 are available in premixed
and frozen 5cc, 10cc, and 30cc syringes. No Mixing is
needed.
Note: Premixed and frozen packaging
requires storage at –40°F (-40°C) and shelf life is 3
months. Minimum buy is 100 syringes for any size.
Component Y ships as a hazardous material: Class 6.1,
UN1673, P/G III
Recommended Frequency and
Mixing Ratios by Weight
Series
CR-110
CR-112
CR-114
CR-116
CR-117
CR-124
Range (GHz)
26+
12 - 18
10 - 14
6 - 12
4-8
5 and below
Part X
100
100
100
100
100
100
Part Y
12.0
8.2
4.8
3.0
2.3
2.0
Instructions for Use
•
•
•
•
•
Recommended Cure Schedule
Temperature
165°F
200°F
(74°C)
(93°C)
Cure Time
12 hours
4 hours
2 hours
1 hour
•
•
•
Prepare mold by applying a thin coat of butchers wax
Mix Part X in its shipping container to a uniform
consistency before removing any material
If crystals appear in Part Y, gently heat to 150 °F until
crystals go into solution
Weigh out the desired amounts of both Part X and Part
Y in accordance with the table at right
Heat Part X to about 150 °F. This will reduce the
viscosity substantially and improve pourability. Note:
in an effort to drop viscosity do not dilute with any
chemical as this would alter the electrical performance
of the material
Thoroughly blend Part X and Part Y.
Remove
entrapped air, if necessary, by vacuum evacuation
Pour into mold (pot life at 150 °F is about 1 hour) and
cure per the below schedule.
The mold is also
preferably preheated to about 150 °F
Clean up can be done with a solvent such as MEK
250°F (121°C)
300°F (149°C)
EMERSON & CUMING MICROWAVE PRODUCTS, INC., 28 York Avenue, Randolph, MA 02368 / Telephone (781) 961-9600. Use of Information and Material: Values shown are based on testing of laboratory test specimens and represent data that
falls within normal range of the material. These values are not intended for use in establishing maximum, minimum or ranges of values for specification purposes. Any determination of the suitability of the material for any purpose
contemplated by the user and the manner of such use is the responsibility of the user. The user should determine that the material meets the needs of the user's product and use. We hope that the information given here will be helpful. It is
based on data and knowledge considered to be true and accurate and is offered for the user's consideration, investigation and verification but we do not warrant the results to be obtained. Please read all statements, recommendations or
suggestions in conjunction with our conditions of sale INCLUDING THOSE LIMITING WARRANTIES AND REMEDIES, which apply to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or
suggestions nor do we intend them as a recommendation for any use, which would infringe any patent or copyright. Emerson & Cuming Microwave Products Inc.
Revision: 10/8/2008
www.eccosorb.com
A23
Typical Attenuation
GHz
CR-110
dB/cm
dB/in
CR-112
dB/cm
dB/in
CR-114
dB/cm
dB/in
CR-116
dB/cm
dB/in
CR-117
dB/cm
dB/in
CR-124
dB/cm
dB/in
10
-7
0
0
0
0
0
0
0
0
0
0
0
0
10
-6
0
0
0
0
0
0
0
0
0
0
0
0
10
-5
0
0
0
0
0
0
0
0
0
0
0
0
10
-4
0
0
0
0
0
0
0
0
0
0
0
0
10
-3
0
0
0
0
0
0
0
0
0
0
0
0
10
-2
0
0
0
0
0
0
0
0
0.03
0.08
0.03
0.08
10
-1
0.01
0.03
0.02
0.05
0.04
0.10
0.09
0.23
0.27
0.69
0.48
1.2
1.0
0.09
0.23
0.16
0.41
0.57
1.4
1.3
3.3
2.8
7.1
6.5
16.51
3.0
0.26
0.66
0.59
1.5
2.2
5.6
5.0
12.7
11
28
20
50
8.6
2.0
5.0
4.9
12.4
10.8
27.4
21
53
46
117
63
160
10.0
2.2
5.6
5.6
14.2
13.2
33.5
32
81
56
142
67
170
18.0
6.6
17
10.1
25.7
24.9
63.2
57
145
119
302
149
378
*Note: Attenuation is a theoretical property calculated from the Complex Permittivity and Complex Permeability of a lossy material and is strictly a
means of comparing one absorbing material to another. The attenuation properties are not an indication of how the material will perform inside a
microwave device. For further electrical and physical properties of the ECCOSORB
®
CR series, please see the Typical Electrical Properties Table on
the ECCOSORB
®
MF technical bulletin
EMERSON & CUMING MICROWAVE PRODUCTS, INC., 28 York Avenue, Randolph, MA 02368 / Telephone (781) 961-9600. Use of Information and Material: Values shown are based on testing of laboratory test specimens and represent data that
falls within normal range of the material. These values are not intended for use in establishing maximum, minimum or ranges of values for specification purposes. Any determination of the suitability of the material for any purpose
contemplated by the user and the manner of such use is the responsibility of the user. The user should determine that the material meets the needs of the user's product and use. We hope that the information given here will be helpful. It is
based on data and knowledge considered to be true and accurate and is offered for the user's consideration, investigation and verification but we do not warrant the results to be obtained. Please read all statements, recommendations or
suggestions in conjunction with our conditions of sale INCLUDING THOSE LIMITING WARRANTIES AND REMEDIES, which apply to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or
suggestions nor do we intend them as a recommendation for any use, which would infringe any patent or copyright. Emerson & Cuming Microwave Products Inc.
Revision: 10/8/2008
www.eccosorb.com
A23
Mouser Electronics
Authorized Distributor
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