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Master Bond adhesives

Teknor Apex Medalist® MD-8431 Thermoplastic Elastomer
Categories: Polymer; Thermoplastic; Elastomer, TPE
Material Notes: Notes: Medalist MD-8431 is a high performance thermoplastic elastomer designed specifically for extrusion and injection molded electrical applications in the medical and healthcare industry. Medalist MD-8431 is a low hardness, low density grade exhibiting good flexibility over a wide temperature range and is suitable for insulation and jacketing.

Availability: Africa & Middle East; Europe; Asia Pacific; Latin America; North America

Features: Autoclave Sterilizable; Electrically Insulation; Ethylene Oxide Sterilizable; Good Color Stability; Good Colorability; Good Sterilizability; Halogen Free; High Tensile Strength; Low Density; Low Flow; Low Specific Gravity; Medium Hardness; Radiation Sterilizable; Slip

Uses: Dental Applications; Flexible Jacketing; Hospital Goods; Medical Devices; Medical/Healthcare Applications; Pharmaceuticals; Rubber Replacement; Wire & Cable Applications

Agency Ratings: ISO 13485

RoHS Compliance: RoHS Compliant

Form: Pellets

Processing Method: Extrusion; Injection Molding

Preliminary data.

Information provided by Teknor Apex
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 0.920 g/cc0.0332 lb/in³ASTM D792
Melt Flow 5.0 g/10 min
@Load 5.00 kg,
Temperature 200 °C		5.0 g/10 min
@Load 11.0 lb,
Temperature 392 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A  68
@Time 5.00 sec		68
@Time 0.00139 hour		ASTM D2240
 70
@Time 1.00 sec		70
@Time 0.000278 hour		ASTM D2240
Tensile Strength at Break 18.3 MPa2650 psiASTM D412
 12.6 MPa
@Treatment Temp. 60.0 °C,
Time 605000 sec		1830 psi
@Treatment Temp. 140 °F,
Time 168 hour		in IRM 902 Oil; ASTM D573
 23.0 MPa
@Treatment Temp. 108 °C,
Time 605000 sec		3340 psi
@Treatment Temp. 227 °F,
Time 168 hour		In Air; ASTM D573
Tensile Stress at Strain  2.62 MPa
@Strain 100 %		380 psi
@Strain 100 %		ASTM D412
 4.55 MPa
@Strain 300 %		660 psi
@Strain 300 %		ASTM D412
Elongation at Break 700 %700 %ASTM D412
 651 %
@Treatment Temp. 60.0 °C,
Time 605000 sec		651 %
@Treatment Temp. 140 °F,
Time 168 hour		in IRM 902 Oil; ASTM D471
 693 %
@Treatment Temp. 108 °C,
Time 605000 sec		693 %
@Treatment Temp. 227 °F,
Time 168 hour		In Air; ASTM D471
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  3.90e+15 ohm-cm
@Temperature 50.0 °C		3.90e+15 ohm-cm
@Temperature 122 °F		ASTM D257
 4.30e+16 ohm-cm
@Temperature 22.8 °C		4.30e+16 ohm-cm
@Temperature 73.0 °F		ASTM D257
Dielectric Constant 2.29
@Frequency 1000 Hz		2.29
@Frequency 1000 Hz		ASTM D150
Dielectric Strength 47.2 kV/mm1200 kV/inASTM D149
Dissipation Factor 0.00086
@Frequency 1000 Hz		0.00086
@Frequency 1000 Hz		ASTM D150
 
Thermal PropertiesMetricEnglishComments
Brittleness Temperature <= -60.0 °C<= -76.0 °FASTM D746
Flammability, UL94 HB
@Thickness 1.52 mm		HB
@Thickness 0.0600 in		NT
Oxygen Index 19 %19 %ASTM D2863
 
Processing PropertiesMetricEnglishComments
Processing Temperature 221 - 229 °C430 - 445 °FMelt, Injection
Rear Barrel Temperature 199 - 216 °C390 - 420 °FInjection
Middle Barrel Temperature 213 - 221 °C415 - 430 °FInjection
Front Barrel Temperature 221 - 227 °C430 - 440 °FInjection
Zone 1 193 - 210 °C380 - 410 °FExtrusion
Zone 2 199 - 216 °C390 - 420 °FExtrusion
Zone 3 213 - 221 °C415 - 430 °FExtrusion
Zone 4 213 - 221 °C415 - 430 °FExtrusion
Zone 5 221 - 229 °C430 - 445 °FExtrusion
Die Temperature 221 - 229 °C430 - 445 °FExtrusion
Mold Temperature 25.0 - 65.6 °C77.0 - 150 °FInjection
Back Pressure 0.172 - 0.345 MPa25.0 - 50.0 psiInjection
Cushion 0.381 - 2.54 cm0.150 - 1.00 inInjection
Screw Speed 30 - 100 rpm30 - 100 rpmExtrusion
 50 - 100 rpm50 - 100 rpmInjection
 
Descriptive Properties
AppearanceColors Available
 Natural Color
 Opaque

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PTEKNQ0674 / 237165




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