Texin® 945 U

About
Texin 945U resin is a polyether-based thermoplastic polyurethane with a Shore hardness of approximately 45D. It can be processed by injection molding, extrusion, or blow molding.&&

Product Description
SupplierCovestro
GenericTPU-醚
Material StatusCommercial: Active
FeaturesGood flexibility,High impact resistance,Hydrolysis stability,Good wear resistance,Heat Stabilized
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density1.14g/cm³ASTM D792
Density1.14g/cm³ISO 1183
Shrinkage rate ISO 2577
TD:2.54 mm0.80%ASTM D955
MD:2.54 mm0.80%ASTM D955
TD:2.54 mm0.80%ISO 2577
MD:2.54 mm0.80%ISO 2577

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D45 ISO 868
Shaw’s D45 ASTM D2240
Bending modulus ASTM D790
23℃103MPaASTM D790
70℃34.5MPaASTM D790
Bending modulus ISO 178
23℃103MPaISO 178
70℃34.5MPaISO 178
Taber abraser 
1000 cycles, 1000 g, H-18 wheels60.0mgISO 4649
1000 cycles, 1000 g, H-18 wheels60.0mgASTM D1044

elastic bodyNominal valueUnitTest method
tensile strength 
yield46.2MPaASTM D412
yield46.2MPaISO 37
300% strain27.6MPaISO 37
300% strain27.6MPaASTM D412
100% strain12.4MPaASTM D412
100% strain12.4MPaISO 37
50% strain9.70MPaISO 37
50% strain9.70MPaASTM D412
Tensile strain
fracture400%ISO 37
fracture400%ASTM D412
tear strength127kN/mASTM D624
tear strength130kN/mISO 34-1
Compression deformation ASTM D395B
23℃,22 hr20%ASTM D395B
23℃,22 hr22%ASTM D395B
70℃,22 hr40%ASTM D395B
70℃,22 hr75%ASTM D395B
Compression deformation ISO 815
23℃,22 hr20%ISO 815
23℃,22 hr22%ISO 815
70℃,22 hr75%ISO 815
70℃,22 hr40%ISO 815
Basho’s elasticity35%ASTM D2632

THERMALNominal valueUnitTest method
Embrittlement temperature< -68.0ASTM D746
Embrittlement temperature< -68.0ISO 974
Glass transition temperature-40.0DMA
Vicat Softening Temp116ASTM D1525 4
Vicat Softening Temp116ISO 306/50

Aging performanceNominal valueUnitTest method
The rate of change in tensile strength in air ASTM D573
100℃,70 hr0.0%ASTM D573
100% Strain,100℃,70 hr7.0%ASTM D573
300% Strain,100℃,70 hr5.0%ASTM D573
100℃,168 hr-4.0%ASTM D573
100% Strain,100℃,168 hr6.0%ASTM D573
300% Strain,100℃,168 hr-1.0%ASTM D573
100℃,336 hr-4.0%ASTM D573
100% Strain,100℃,336 hr6.0%ASTM D573
300% Strain,100℃,336 hr-1.0%ASTM D573
100℃,504 hr-8.0%ASTM D573
100% Strain,100℃,504 hr5.0%ASTM D573
300% Strain,100℃,504 hr-3.0%ASTM D573
The rate of change in tensile strength in air ISO 216
100℃,70 hr0.0%ISO 216
100% Strain 100℃,70 hr7.0%ISO 216
300% Strain 100℃,70 hr5.0%ISO 216
100℃,168 hr-4.0%ISO 216
100% Strain 100℃,168 hr6.0%ISO 216
300% Strain 100℃,168 hr-1.0%ISO 216
100℃,336 hr-4.0%ISO 216
100% Strain 100℃,336 hr6.0%ISO 216
300% Strain 100℃,336 hr-1.0%ISO 216
100℃,504 hr-8.0%ISO 216
100% Strain 100℃,504 hr5.0%ISO 216
300% Strain 100℃,504 hr-3.0%ISO 216
The rate of change in ultimate elongation in air ASTM D573
100℃,70 hr9.0%ASTM D573
100℃,168 hr14%ASTM D573
100℃,336 hr13%ASTM D573
100℃,504 hr17%ASTM D573
Changes in tensile stress during fracture in air ISO 216
100℃,70 hr9.0%ISO 216
100℃,168 hr14%ISO 216
100℃,336 hr13%ISO 216
100℃,504 hr17%ISO 216
The rate of change in hardness of a hardness tester in the air ASTM D573
Shore D, 100 ℃, 70 hr-1.0 ASTM D573
Shore D, 100 ℃, 168 hr0.0 ASTM D573
Shore D, 100 ℃, 336 hr-1.0 ASTM D573
Shore D, 100 ℃, 504 hr0.0 ASTM D573
The rate of change of Shore hardness in air ISO 216
Shore D, 100 ℃, 70 hr-1.0 ISO 216
Shore D, 100 ℃, 168 hr0.0 ISO 216
Shore D, 100 ℃, 336 hr-1.0 ISO 216
Shore D, 100 ℃, 504 hr0.0 ISO 216
The rate of change in tensile strength ASTM D471
23℃,70 hr,in Reference Fuel A(Isooctane)10%ASTM D471
100% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)-2.0%ASTM D471
300% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)-3.0%ASTM D471
23 ℃, 70 hr, methanol-25%ASTM D471
100% Strain,23℃,70 hr,in Reference Fuel C-32%ASTM D471
300% Strain,23℃,70 hr,in Reference Fuel C-33%ASTM D471
23℃,168 hr,in Reference Fuel A(Isooctane)4.0%ASTM D471
100% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)8.0%ASTM D471
300% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)0.0%ASTM D471
23 ℃, 168 hr, methanol-26%ASTM D471
100% Strain,23℃,168 hr,in Reference Fuel C-28%ASTM D471
300% Strain,23℃,168 hr,in Reference Fuel C-30%ASTM D471
23℃,336 hr,in Reference Fuel A(Isooctane)8.0%ASTM D471
100% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)1.0%ASTM D471
300% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)-5.0%ASTM D471
23℃,336 hr,in Reference Fuel C-28%ASTM D471
100% Strain,23℃,336 hr,in Reference Fuel C-27%ASTM D471
300% Strain,23℃,336 hr,in Reference Fuel C-30%ASTM D471
23℃,504 hr,in Reference Fuel A(Isooctane)7.0%ASTM D471
100% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-4.0%ASTM D471
300% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-8.0%ASTM D471
23℃,504 hr,in Reference Fuel C-24%ASTM D471
100% Strain,23℃,504 hr,in Reference Fuel C-27%ASTM D471
300% Strain,23℃,504 hr,in Reference Fuel C-28%ASTM D471
100 ℃, 70 hr, in ASTM # 1 oil-4.0%ASTM D471
100% Strain,100℃,70 hr,in ASTM #1 Oil10%ASTM D471
300% Strain,100℃,70 hr,in ASTM #1 Oil8.0%ASTM D471
100 ℃, 70 hr, in ASTM # 3 oil10%ASTM D471
100% Strain,100℃,70 hr,in ASTM #3 Oil2.0%ASTM D471
300% Strain,100℃,70 hr,in ASTM #3 Oil-1.0%ASTM D471
100℃,168 hr,in ASTM #1 Oil-11%ASTM D471
100% Strain,100℃,168 hr,in ASTM #1 Oil4.0%ASTM D471
300% Strain,100℃,168 hr,in ASTM #1 Oil-4.0%ASTM D471
100℃,168 hr,in ASTM #3 Oil9.0%ASTM D471
100% Strain,100℃,168 hr,in ASTM #3 Oil-7.0%ASTM D471
300% Strain,100℃,168 hr,in ASTM #3 Oil-10%ASTM D471
100℃,336 hr,in ASTM #1 Oil-11%ASTM D471
100% Strain,100℃,336 hr,in ASTM #1 Oil11%ASTM D471
300% Strain,100℃,336 hr,in ASTM #1 Oil0.0%ASTM D471
100℃,336 hr,in ASTM #3 Oil7.0%ASTM D471
100% Strain,100℃,336 hr,in ASTM #3 Oil2.0%ASTM D471
300% Strain,100℃,336 hr,in ASTM #3 Oil-7.0%ASTM D471
100℃,504 hr,in ASTM #1 Oil-14%ASTM D471
100% Strain,100℃,504 hr,in ASTM #1 Oil5.0%ASTM D471
300% Strain,100℃,504 hr,in ASTM #1 Oil-9.0%ASTM D471
100℃,504 hr,in ASTM #3 Oil-9.0%ASTM D471
100% Strain,100℃,504 hr,in ASTM #3 Oil-4.0%ASTM D471
300% Strain,100℃,504 hr,in ASTM #3 Oil-15%ASTM D471
The rate of change in tensile strength ISO 175
23℃,70 hr,in Reference Fuel A(Isooctane)10%ISO 175
100% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)-2.0%ISO 175
300% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)-3.0%ISO 175
23 ℃, 70 hr, methanol-25%ISO 175
100% Strain,23℃,70 hr,in Reference Fuel C-32%ISO 175
300% Strain,23℃,70 hr,in Reference Fuel C-33%ISO 175
23℃,168 hr,in Reference Fuel A(Isooctane)4.0%ISO 175
100% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)8.0%ISO 175
300% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)0.0%ISO 175
23 ℃, 168 hr, methanol-26%ISO 175
100% Strain,23℃,168 hr,in Reference Fuel C-28%ISO 175
300% Strain,23℃,168 hr,in Reference Fuel C-30%ISO 175
23℃,336 hr,in Reference Fuel A(Isooctane)8.0%ISO 175
100% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)1.0%ISO 175
300% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)-5.0%ISO 175
23℃,336 hr,in Reference Fuel C-28%ISO 175
100% Strain,23℃,336 hr,in Reference Fuel C-27%ISO 175
300% Strain,23℃,336 hr,in Reference Fuel C-30%ISO 175
23℃,504 hr,in Reference Fuel A(Isooctane)7.0%ISO 175
100% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-4.0%ISO 175
300% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-8.0%ISO 175
23℃,504 hr,in Reference Fuel C-24%ISO 175
100% Strain,23℃,504 hr,in Reference Fuel C-27%ISO 175
300% Strain,23℃,504 hr,in Reference Fuel C-28%ISO 175
100 ℃, 70 hr, in ASTM # 1 oil-4.0%ISO 175
100% Strain,100℃,70 hr,in ASTM #1 Oil10%ISO 175
300% Strain,100℃,70 hr,in ASTM #1 Oil8.0%ISO 175
100 ℃, 70 hr, in ASTM # 3 oil10%ISO 175
100% Strain,100℃,70 hr,in ASTM #3 Oil2.0%ISO 175
300% Strain,100℃,70 hr,in ASTM #3 Oil-1.0%ISO 175
100℃,168 hr,in ASTM #1 Oil-11%ISO 175
100% Strain,100℃,168 hr,in ASTM #1 Oil4.0%ISO 175
300% Strain,100℃,168 hr,in ASTM #1 Oil-4.0%ISO 175
100℃,168 hr,in ASTM #3 Oil9.0%ISO 175
100% Strain,100℃,168 hr,in ASTM #3 Oil-7.0%ISO 175
300% Strain,100℃,168 hr,in ASTM #3 Oil-10%ISO 175
100℃,336 hr,in ASTM #1 Oil-11%ISO 175
100% Strain,100℃,336 hr,in ASTM #1 Oil11%ISO 175
300% Strain,100℃,336 hr,in ASTM #1 Oil0.0%ISO 175
100℃,336 hr,in ASTM #3 Oil7.0%ISO 175
100% Strain,100℃,336 hr,in ASTM #3 Oil2.0%ISO 175
300% Strain,100℃,336 hr,in ASTM #3 Oil-7.0%ISO 175
100℃,504 hr,in ASTM #1 Oil-14%ISO 175
100% Strain,100℃,504 hr,in ASTM #1 Oil5.0%ISO 175
300% Strain,100℃,504 hr,in ASTM #1 Oil-9.0%ISO 175
100℃,504 hr,in ASTM #3 Oil-9.0%ISO 175
100% Strain,100℃,504 hr,in ASTM #3 Oil-4.0%ISO 175
300% Strain,100℃,504 hr,in ASTM #3 Oil-15%ISO 175
Change rate of ultimate elongation ASTM D471
23℃,70 hr,in Reference Fuel A(Isooctane)5.0%ASTM D471
23 ℃, 70 hr, methanol-5.0%ASTM D471
23℃,168 hr,in Reference Fuel A(Isooctane)1.0%ASTM D471
23 ℃, 168 hr, methanol-4.0%ASTM D471
23℃,336 hr,in Reference Fuel A(Isooctane)4.0%ASTM D471
23℃,336 hr,in Reference Fuel C-6.0%ASTM D471
23℃,504 hr,in Reference Fuel A(Isooctane)6.0%ASTM D471
23℃,504 hr,in Reference Fuel C-6.0%ASTM D471
100 ℃, 70 hr, in ASTM # 1 oil11%ASTM D471
100 ℃, 70 hr, in ASTM # 3 oil19%ASTM D471
100℃,168 hr,in ASTM #1 Oil21%ASTM D471
100℃,168 hr,in ASTM #3 Oil32%ASTM D471
100℃,336 hr,in ASTM #1 Oil20%ASTM D471
100℃,336 hr,in ASTM #3 Oil25%ASTM D471
100℃,504 hr,in ASTM #1 Oil24%ASTM D471
100℃,504 hr,in ASTM #3 Oil30%ASTM D471
Changes in tensile stress during fracture ISO 175
23℃,70 hr,in Reference Fuel A(Isooctane)5.0%ISO 175
23 ℃, 70 hr, methanol-5.0%ISO 175
23℃,168 hr,in Reference Fuel A(Isooctane)1.0%ISO 175
23 ℃, 168 hr, methanol-4.0%ISO 175
23℃,336 hr,in Reference Fuel A(Isooctane)4.0%ISO 175
23℃,336 hr,in Reference Fuel C-6.0%ISO 175
23℃,504 hr,in Reference Fuel A(Isooctane)6.0%ISO 175
23℃,504 hr,in Reference Fuel C-6.0%ISO 175
100 ℃, 70 hr, in ASTM # 1 oil11%ISO 175
100 ℃, 70 hr, in ASTM # 3 oil19%ISO 175
100℃,168 hr,in ASTM #1 Oil21%ISO 175
100℃,168 hr,in ASTM #3 Oil32%ISO 175
100℃,336 hr,in ASTM #1 Oil20%ISO 175
100℃,336 hr,in ASTM #3 Oil25%ISO 175
100℃,504 hr,in ASTM #1 Oil24%ISO 175
100℃,504 hr,in ASTM #3 Oil30%ISO 175
The rate of change in Shore hardness ASTM D471
Shore D, 23 ℃, 70 hr, in reference fuel A (isooctane)-1.0 ASTM D471
Shore D, 23°C, 70 hr, in Reference Fuel C-6.0 ASTM D471
Shore D, 23 ℃, 168 hr, in reference fuel A (isooctane)-1.0 ASTM D471
Shore D, 23 ℃, 168 hr, in reference fuel-5.0 ASTM D471
Shore D, 23 ℃, 336 hr, in reference fuel A (isooctane)0.0 ASTM D471
Shore D, 23 ℃, 336 hr, in reference fuel C-7.0 ASTM D471
Shore D, 23 ℃, 504 hr, in reference fuel A (isooctane)-1.0 ASTM D471
Shore D, 23 ℃, 504 hr, in reference fuel C-6.0 ASTM D471
Shore D, 100°C, 70 hr, in ASTM #1 Oil-1.0 ASTM D471
Shore D, 100 ℃, 70 hr, in ASTM # 3 oil-4.0 ASTM D471
Shore D, 100°C, 168 hr, in ASTM #1 Oil2.0 ASTM D471
Shore D, 100 ℃, 168 hr, in ASTM # 3 oil-4.0 ASTM D471
Shore D, 100 ℃, 336 hr, in ASTM # 1 oil-1.0 ASTM D471
Shore D, 100 ℃, 336 hr, in ASTM # 3 oil-4.0 ASTM D471
Shore D, 100 ℃, 504 hr, in ASTM # 1 oil0.0 ASTM D471
Shore D, 100 ℃, 504 hr, in ASTM # 3 oil-4.0 ASTM D471
The rate of change in Shore hardness ISO 175
Shore D, 23 ℃, 70 hr, in reference fuel A (isooctane)-1.0 ISO 175
Shore D, 23°C, 70 hr, in Reference Fuel C-6.0 ISO 175
Shore D, 23 ℃, 168 hr, in reference fuel A (isooctane)-1.0 ISO 175
Shore D, 23 ℃, 168 hr, in reference fuel-5.0 ISO 175
Shore D, 23 ℃, 336 hr, in reference fuel A (isooctane)0.0 ISO 175
Shore D, 23 ℃, 336 hr, in reference fuel C-7.0 ISO 175
Shore D, 23 ℃, 504 hr, in reference fuel A (isooctane)-1.0 ISO 175
Shore D, 23 ℃, 504 hr, in reference fuel C-6.0 ISO 175
Shore D, 100°C, 70 hr, in ASTM #1 Oil-1.0 ISO 175
Shore D, 100 ℃, 70 hr, in ASTM # 3 oil-4.0 ISO 175
Shore D, 100°C, 168 hr, in ASTM #1 Oil2.0 ISO 175
Shore D, 100 ℃, 168 hr, in ASTM # 3 oil-4.0 ISO 175
Shore D, 100 ℃, 336 hr, in ASTM # 1 oil-1.0 ISO 175
Shore D, 100 ℃, 336 hr, in ASTM # 3 oil-4.0 ISO 175
Shore D, 100 ℃, 504 hr, in ASTM # 1 oil0.0 ISO 175
Shore D, 100 ℃, 504 hr, in ASTM # 3 oil-4.0 ISO 175
Volume change ASTM D471
23℃,70 hr,in Reference Fuel A1.0%ASTM D471
23 ℃, 70 hr, methanol30%ASTM D471
23℃,168 hr,in Reference Fuel A2.0%ASTM D471
23 ℃, 168 hr, methanol32%ASTM D471
23℃,336 hr,in Reference Fuel A3.0%ASTM D471
23℃,336 hr,in Reference Fuel C33%ASTM D471
23℃,504 hr,in Reference Fuel A3.0%ASTM D471
23℃,504 hr,in Reference Fuel C31%ASTM D471
100 ℃, 70 hr, in ASTM # 1 oil1.0%ASTM D471
100 ℃, 70 hr, in ASTM # 3 oil12%ASTM D471
100℃,168 hr,in ASTM #1 Oil-1.0%ASTM D471
100℃,168 hr,in ASTM #3 Oil13%ASTM D471
100℃,336 hr,in ASTM #1 Oil0.0%ASTM D471
100℃,336 hr,in ASTM #3 Oil17%ASTM D471
100℃,504 hr,in ASTM #1 Oil0.0%ASTM D471
100℃,504 hr,in ASTM #3 Oil16%ASTM D471
Volume change ISO 175
23℃,70 hr,in Reference Fuel A1.0%ISO 175
23 ℃, 70 hr, methanol30%ISO 175
23℃,168 hr,in Reference Fuel A2.0%ISO 175
23 ℃, 168 hr, methanol32%ISO 175
23℃,336 hr,in Reference Fuel A3.0%ISO 175
23℃,336 hr,in Reference Fuel C33%ISO 175
23℃,504 hr,in Reference Fuel A3.0%ISO 175
23℃,504 hr,in Reference Fuel C31%ISO 175
100 ℃, 70 hr, in ASTM # 1 oil1.0%ISO 175
100 ℃, 70 hr, in ASTM # 3 oil12%ISO 175
100℃,168 hr,in ASTM #1 Oil-1.0%ISO 175
100℃,168 hr,in ASTM #3 Oil13%ISO 175
100℃,336 hr,in ASTM #1 Oil0.0%ISO 175
100℃,336 hr,in ASTM #3 Oil17%ISO 175
100℃,504 hr,in ASTM #1 Oil0.0%ISO 175
100℃,504 hr,in ASTM #3 Oil16%ISO 175

Supplementary informationNominal valueUnitTest method
Compression load ASTM D575
10% deflection3.79MPaASTM D575
15% deflection5.34MPaASTM D575
2% deflection0.896MPaASTM D575
20% deflection6.89MPaASTM D575
25% deflection8.38MPaASTM D575
5% deflection2.10MPaASTM D575
50% deflection21.5MPaASTM D575

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Drying temperature – hot air dryer100 to 110°C
Drying time – hot air dryer2.0hr
Recommended maximum moisture content< 0.030%
Recommended injection volume40 to 80%
Proposed maximum recycled material ratio20%
Barrel rear temperature180 to 200°C
Barrel middle temperature180 to 205°C
Barrel front temperature180 to 210°C
Nozzle temperature185 to 210°C
Processing (melt) temperature195 to 205°C
Mold temperature15 to 40°C
Injection pressure41.4 to 103MPa
Injection speedSlow-Moderate 
Back pressure< 1.38MPa
Screw speed40 to 80rpm
Clamping force4.1 to 6.9kN/cm²
Cushion< 3.18mm
Screw length to diameter ratio24.0:1.0 
Screw compression ratio3.0:1.0 
Drying temperature100 to 110°C
Drying time2.0hr
Barrel 1 zone temperature180 to 200°C
Barrel 3 zone temperature180 to 205°C
Barrel 5 zone temperature180 to 210°C
Connector temperature180 to 210°C
Melt temperature190 to 205°C
Nozzle temperature185 to 210°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. Die C
3. Post-cured 16 hr at 230°F
4. Rate A (50°C/h)
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