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Metal adhesives

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Parker Chomerics CHO-FAB CFT Shielding Tape
Categories: Polymer; Adhesive; Tape
Material Notes: Conductive Adhesive Nickel-Plated Fabric

Description: CHO-FAB® tape is a corrosion resistant nickel-plated cloth coated with Chomerics’ highly conductive pressure-sensitive adhesive. CHO-FAB® tape is extremely strong and lightweight, and has excellent conformability/wrapability to enhance shielding performance and appearance. Use of corrosion resistant nickel-plated cloth and Chomerics’ superior metal-particle-filled conductive adhesive technology produces a tape used in a wide variety of EMI shielding and grounding applications.

Typical Applications: Provide a low impedance connection between a braided cable shield and the metal connector backshell in molded cables. An effective EMI shielded assembly can be achieved without soldering the tape to the braid or backshell; EMI radiation measurement troubleshooting, using CHO-FOIL tape to shield ventilation slots or seam gaps; Provide electrical continuity in seams of EMI shielded rooms and electronic enclosures; Supply electrical contact to surfaces that can’t be soldered to, such as conductive plastic or aluminum; EMI shield for cables by wrapping the tape around the cable. An overlap is recommended; ESD shielding; Provide corrosion-resistant ground contact points; Fabric tape available where weight and flexibility are important, such as for wrapping cables.

Information provided by Chomerics
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Physical PropertiesOriginal ValueComments
Thickness 1.50 milAdhesive thickness
 5.00 milFabric thickness
 6.50 milTotal
 
Mechanical PropertiesOriginal ValueComments
Peel Strength 2.80 pliInitial; ASTM D1000
 2.90 pli
@Temperature 85.0 °C		95% RH; ASTM D1000
 2.70 pli
@Temperature 121 °C,
Time 605000 sec		ASTM D1000
 3.70 pli
@Temperature 85.0 °C,
Time 605000 sec		ASTM D1000
 2.10 pli
@Time 605000 sec		Salt fog corrosion; ASTM D1000
Taber Abrasion, mg/1000 Cycles <= 350500 gram weight. CS-10 wheel; CHO-TP-57
 
Electrical PropertiesOriginal ValueComments
Surface Resistance <= 0.10 ohmInitial Surface Resistivity (SR); CHO-TP-57
 <= 0.10 ohmInitial through resistivity (TR); CHO-TP-57
 <= 0.10 ohmInitial Taber Abrasion; CHO-TP-57
 <= 0.10 ohm
@Temperature 85.0 °C		95% RH; (SR); CHO-TP-57
 <= 0.15 ohm
@Temperature 85.0 °C		95% RH; (TR); CHO-TP-57
 <= 0.10 ohm
@Temperature 85.0 °C,
Time 605000 sec		(SR); CHO-TP-57
 <= 0.10 ohm
@Temperature 121 °C,
Time 605000 sec		(SR); CHO-TP-57
 <= 0.15 ohm
@Temperature 121 °C,
Time 605000 sec		(TR); CHO-TP-57
 <= 0.15 ohm
@Temperature 85.0 °C,
Time 605000 sec		(TR); CHO-TP-57
 <= 0.10 ohm
@Time 605000 sec		Salt fog corrosion; (SR); CHO-TP-57
 <= 1.0 ohm
@Time 605000 sec		Salt fog corrosion; (TR); CHO-TP-57
Surface Resistivity per Square <= 0.10 ohm[ohm/in2]; <.016 ohm/cm2; MIL-STD-202C
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 82.0 °C
Minimum Service Temperature, Air -40.0 °C
 
Descriptive Properties
Adhesion to Aluminum>40 oz./inchASTM D1000
Adhesive TypeElectrically Conductive, Pressure-Sensitive Acrylic
Foil/Fabric TypeNickel-Plated Fabric

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Parker Chomerics CHO-FAB CRS Shielding Tape

PCHOME069 / 28291

Metal adhesives




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