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Parker Chomerics CHO-FORM 5541 Conductive Form-In-Place Gaskets

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone
Manufacturer Parker Chomerics
Trade Name CHO-FORM
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Parker Chomerics CHO-FORM 5541 Conductive Form-In-Place Gaskets.pdf
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Material Notes:
Description: A range of conductive particle technologies combined with thermoset and RTV silicone systems provide a material selection for most opportunities. Multiple filler grades balance material cost versus performance and can provide low cost alternatives for less demanding applications. Chomerics corrosion resistant materials inherently provide protection against galvanic activity. They may eliminate the need for nickel or tin plating and or secondary environmental gaskets. Chomerics general purpose materials exhibit excellent electrical and mechanical properties on metallic and shield plastic housing. Chomerics silver filled materials provide high shielding and conductivity critical for inter-compartmental shields. CHOFORM delivers a greater deflection range, lower deflection forces & improved reliability. Features: Lower deflection forces and a broad deflection range, Corrosion resistant materials can eliminate plating or secondary environmental gasket, Good adhesion to many substrates, Supply chain management providing ongoing logistics, Low cost and rapid prototyping and Corrosion Resistant, High Temp.Information provided by Chomerics
Physical Properties Metric English Comments
Specific Gravity 2.40 g/cc
2.40 g/cc
ASTM D792
Viscosity 1.70e+6 cP
1.70e+6 cP
Deformation 30 %
30 %
141.8 N/cm; ASTM D575 Modified
Mechanical Properties Metric English Comments
Hardness, Shore A 75 - 79
75 - 79
ASTM DD2240
Tensile Strength at Break 3.10 - 3.45 MPa
450 - 500 psi
ASTM D412
Elongation at Break 125 %
125 %
ASTM D412
Compression Set 30 %

@Temperature 70.0 °C,
Time 79200 sec
30 %

@Temperature 158 °F,
Time 22.0 hour
ASTM D395 Method B
40 %

@Temperature 85.0 °C,
Time 79200 sec
40 %

@Temperature 185 °F,
Time 22.0 hour
ASTM D395 Method B
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 150 °C
302 °F
Flammability, UL94 V-0
V-0
Electrical Properties Metric English Comments
Volume Resistivity 0.020 ohm-cm
0.020 ohm-cm
Initial; Chomerics MAT-1002
0.030 ohm-cm
0.030 ohm-cm
Chomerics MAT-1002
0.040 ohm-cm
0.040 ohm-cm
Aged; Chomerics MAT-1002
Shielding Effectiveness 65 - 70 dB

@Frequency 2.00e+8 - 1.20e+10 Hz
65 - 70 dB

@Frequency 2.00e+8 - 1.20e+10 Hz
Processing Properties Metric English Comments
Cure Time 30.0 min

@Temperature 150 °C
0.500 hour

@Temperature 302 °F
Tack Free Time
30.0 min

@Temperature 150 °C
0.500 hour

@Temperature 302 °F
Handling Time
30.0 min

@Temperature 150 °C
0.500 hour

@Temperature 302 °F
Full Cure
Shelf Life 6.00 Month

@Temperature -12.0 - -8.00 °C
6.00 Month

@Temperature 10.4 - 17.6 °F
Chomerics
Descriptive Properties Value Comments
Adhesion 10-12 N/cm
Trivalent Chromate Coating on Aluminum
Binder Silicone
Cure System Thermal
Filler Nickel-plated graphite (Ni/C)
Flow Rate 0.85 - 1.15 grams/min
Chomerics - MAT-1200
Galvanic Corrosion 32 mg
Resistance Against Aluminum; Chomerics TM-100
Number of Components 1
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