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Flame Retardant adhesives

3M Scotch-Weld™ 3748 VO Hot Melt Adhesive
Categories: Polymer; Adhesive

Material Notes: Self-extinguishing version of 3748. Meets UL 1410 requirements

Information provided by 3M

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Physical PropertiesMetricEnglishComments
Density 1.09 g/cc0.0394 lb/in³
Viscosity  3300 cP
@Temperature 220 °C
3300 cP
@Temperature 428 °F
 5000 cP
@Temperature 200 °C
5000 cP
@Temperature 392 °F
 8500 cP
@Temperature 180 °C
8500 cP
@Temperature 356 °F
Brookfield Viscosity 5500 cP
@Temperature 191 °C
5500 cP
@Temperature 375 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 2626ASTM D2240
Shear Strength 1.48 MPa215 psiFR-24 to FR-4
 1.52 MPa220 psiPE to PE
 1.72 MPa250 psiPP to PP
 1.90 MPa275 psiOn Douglas Fir
 1.90 MPa275 psiFirt to Fir
Peel Strength 2.63 kN/m15.0 plion canvas
 4.56 kN/m26.0 pliFir, 180°
 4.73 kN/m27.0 pliPE, 180°
 6.14 kN/m35.0 pliPP, 180°
 6.66 kN/m38.0 pliWire Mesh to FR-4, 180°
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 6.00e+17 ohm-cm6.00e+17 ohm-cmASTM D257
Surface Resistance 4.50e+17 ohm4.50e+17 ohm
Dielectric Constant 2.3
@Frequency 100 - 1.00e+8 Hz
2.3
@Frequency 100 - 1.00e+8 Hz
ASTM D149
Dielectric Strength 55.1 kV/mm
@Thickness 0.279 mm
1400 kV/in
@Thickness 0.0110 in
ASTM D149
Dissipation Factor  0.0010
@Frequency 1000 - 1.00e+8 Hz
0.0010
@Frequency 1000 - 1.00e+8 Hz
ASTM D149
 0.0020
@Frequency 100 Hz
0.0020
@Frequency 100 Hz
ASTM D149
 
Thermal PropertiesMetricEnglishComments
CTE, linear  -3.40 µm/m-°C
@Temperature -40.0 °C
-1.89 µin/in-°F
@Temperature -40.0 °F
 15.4 µm/m-°C
@Temperature 25.0 °C
8.56 µin/in-°F
@Temperature 77.0 °F
Thermal Conductivity 1.92 W/m-K13.3 BTU-in/hr-ft²-°F
Flammability, UL94 V-0V-0
Ring & Ball Softening Point 152 °C306 °FASTM E28-99

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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PMM34090 / 168837

Flame Retardant adhesives

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