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Master Bond adhesives

Covestro DESMODUR® LU-D70 + BAYTEC® XL 1705 Polyurethane, TDI-Ester
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes:

Information provided by Covestro

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.20 g/cc1.20 g/ccDESMODUR® LU-D70
 1.21 g/cc1.21 g/ccBAYTEC® XL 1705
Viscosity 690 cP690 cPBAYTEC® XL 1705
 1200 cP1200 cPDESMODUR® LU-D70
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 7272DIN 53505
 73
@Temperature 80.0 °C
73
@Temperature 176 °F
DIN 53505
 80
@Temperature -5.00 °C
80
@Temperature 23.0 °F
DIN 53505
Tensile Strength at Break 50.0 MPa7250 psiDIN 53504
Tensile Stress at Strain 1.50 MPa
@Strain 10 %
218 psi
@Strain 10 %
DIN 53504
Elongation at Break 750 %750 %DIN 53504
100% Modulus 3.90 MPa
@Strain 100 %
566 psi
@Strain 100 %
DIN 53504
200% Modulus 4.90 MPa
@Strain 200 %
711 psi
@Strain 200 %
DIN 53504
300% Modulus 7.10 MPa
@Strain 300 %
1030 psi
@Strain 300 %
DIN 53504
Resilience 4646[%]; DIN 53512
Tear Strength 50.0 kN/m285 pliwith nick; ISO 34-1
 82.0 kN/m468 pliwithout nick; ISO 34-1
Abrasion 3030[mm3]; ISO 4649
Compression Set 38 %
@Temperature 70.0 °C,
Time 79200 sec
38 %
@Temperature 158 °F,
Time 22.0 hour
ISO 815-1
 
Processing PropertiesMetricEnglishComments
Processing Temperature 30.0 °C86.0 °FBAYTEC® XL 1705
 80.0 °C176 °FDESMODUR® LU-D70
Mold Temperature 100 °C212 °F
Pot Life 8.75 min8.75 min
 
Descriptive Properties
AppearanceliquidBAYTEC® XL 1705
 solidDESMODUR® LU-D70
Content100Parts by weight of prepolymer
 2.1-2.5%NCO
 5.6Parts by weight of BAYTEC® XL 1705

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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PCOVEST0362 / 202145

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