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Master Bond adhesives

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Covestro DESMODUR® TG250 + MOCA, 90A Polyurethane, TDI- PPG
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes:

Information provided by Covestro

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.02 g/ccDESMODUR® TG250
 1.13 g/cc
 1.25 g/ccMOCA
Viscosity 600 cPDESMODUR® TG250
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 90DIN 53505
 88
@Temperature 80.0 °C
DIN 53505
 96
@Temperature -5.00 °C
DIN 53505
Tensile Strength at Break 29.0 MPaDIN 53504
Tensile Stress at Strain 3.80 MPa
@Strain 10 %
DIN 53504
Elongation at Break 400 %DIN 53504
100% Modulus 0.00850 GPa
@Strain 100 %
DIN 53504
200% Modulus 0.0127 GPa
@Strain 200 %
DIN 53504
300% Modulus 0.0185 GPa
@Strain 300 %
DIN 53504
Resilience 23[%]; DIN 53512
Tear Strength 55.0 kN/mwith nick; ISO 34-1
 107 kN/mwithout nick; ISO 34-1
Abrasion 40[mm3]; ISO 4649
Compression Set 30 %
@Temperature 70.0 °C,
Time 79200 sec
ISO 815-1
 
Processing PropertiesOriginal ValueComments
Processing Temperature 70.0 °CDESMODUR® TG250
 120 °CMOCA
Mold Temperature 100 °C
Pot Life 5.00 min
 
Descriptive Properties
AppearanceliquidDESMODUR® TG250
 solidMOCA
Content100Parts by weight of prepolymer
 16.2Parts by weight of MOCA
 5.15-5.55%NCO, DESMODUR® TG250

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