Texin® 245

About
Texin 245 resin is an aromatic polyester-based thermoplastic polyurethane with a Shore hardness of approximately 43D. It can be processed by injection molding; extrusion processes are not recommended.&&

Product Description
SupplierCovestro
GenericTPU-酯
Material StatusCommercial: Active
FeaturesGood flexibility,High impact resistance,Antifreeze,Good wear resistance,Grease resistance,Fuel resistance,HB
AvailabilitysNorth America
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.21g/cm³ASTM D792
Density1.21g/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 D43 ASTM D2240
Shaw’s D43 ISO 868
Bending modulus ASTM D790
23℃68.9MPaASTM D790
70℃51.7MPaASTM D790
Bending modulus ISO 178
23℃68.9MPaISO 178
70℃51.7MPaISO 178
Taber abraser 
1000 cycles, 1000 g, H-18 wheels70.0mgISO 4649
1000 cycles, 1000 g, H-18 wheels70.0mgASTM D1044

elastic bodyNominal valueUnitTest method
tensile strength 
yield54.5MPaASTM D412
yield54.5MPaISO 37
300% strain20.7MPaASTM D412
300% strain20.7MPaISO 37
100% strain9.00MPaISO 37
100% strain9.00MPaASTM D412
50% strain7.60MPaISO 37
50% strain7.60MPaASTM D412
Tensile strain
fracture500%ISO 37
fracture500%ASTM D412
tear strength123kN/mASTM D624
tear strength120kN/mISO 34-1
Compression deformation ASTM D395B
23℃,22 hr18%ASTM D395B
23℃,22 hr18%ASTM D395B
70℃,22 hr35%ASTM D395B
70℃,22 hr43%ASTM D395B
100℃,22 hr35%ASTM D395B
100℃,22 hr60%ASTM D395B
Compression deformation ISO 815
23℃,22 hr18%ISO 815
23℃,22 hr18%ISO 815
70℃,22 hr43%ISO 815
70℃,22 hr35%ISO 815
100℃,22 hr60%ISO 815
100℃,22 hr35%ISO 815
Basho’s elasticity45%ASTM D2632

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch ASTM D256
-30℃,3.2mm180J/mASTM D256
23℃,3.2mmNo Break ASTM D256

THERMALNominal valueUnitTest method
Embrittlement temperature< -68.0ASTM D746
Embrittlement temperature< -68.0ISO 974
Glass transition temperature-46.0DMA
Vicat Softening Temp148ASTM D1525 4
Vicat Softening Temp148ISO 306/50
Relative temperature index
Electrical performance, 1.50 mm50.0UL 746
Strength mechanical performance, 1.50 mm50.0UL 746
Impact mechanical performance, 1.50 mm50.0UL 746

Aging performanceNominal valueUnitTest method
The rate of change in tensile strength in air ASTM D573
100℃,70 hr5.0%ASTM D573
100% Strain,100℃,70 hr4.0%ASTM D573
300% Strain,100℃,70 hr0.0%ASTM D573
100℃,168 hr9.0%ASTM D573
100% Strain,100℃,168 hr3.0%ASTM D573
300% Strain,100℃,168 hr2.0%ASTM D573
100℃,336 hr8.0%ASTM D573
100% Strain,100℃,336 hr3.0%ASTM D573
300% Strain,100℃,336 hr-4.0%ASTM D573
100℃,504 hr5.0%ASTM D573
100% Strain,100℃,504 hr2.0%ASTM D573
300% Strain,100℃,504 hr-1.0%ASTM D573
The rate of change in tensile strength in air ISO 216
100℃,70 hr5.0%ISO 216
100% Strain 100℃,70 hr4.0%ISO 216
300% Strain 100℃,70 hr0.0%ISO 216
100℃,168 hr9.0%ISO 216
100% Strain 100℃,168 hr3.0%ISO 216
300% Strain 100℃,168 hr2.0%ISO 216
100℃,336 hr8.0%ISO 216
100% Strain 100℃,336 hr3.0%ISO 216
300% Strain 100℃,336 hr-4.0%ISO 216
100℃,504 hr5.0%ISO 216
100% Strain 100℃,504 hr2.0%ISO 216
300% Strain 100℃,504 hr-1.0%ISO 216
The rate of change in ultimate elongation in air ASTM D573
100℃,70 hr0.0%ASTM D573
100℃,168 hr2.0%ASTM D573
100℃,336 hr2.0%ASTM D573
100℃,504 hr5.0%ASTM D573
Changes in tensile stress during fracture in air ISO 216
100℃,70 hr0.0%ISO 216
100℃,168 hr2.0%ISO 216
100℃,336 hr2.0%ISO 216
100℃,504 hr5.0%ISO 216
The rate of change in hardness of a hardness tester in the air ASTM D573
Shore D, 100 ℃, 70 hr-3.0 ASTM D573
Shore D, 100 ℃, 168 hr-4.0 ASTM D573
Shore D, 100 ℃, 336 hr-4.0 ASTM D573
Shore D, 100 ℃, 504 hr-5.0 ASTM D573
The rate of change of Shore hardness in air ISO 216
Shore D, 100 ℃, 70 hr-3.0 ISO 216
Shore D, 100 ℃, 168 hr-4.0 ISO 216
Shore D, 100 ℃, 336 hr-4.0 ISO 216
Shore D, 100 ℃, 504 hr-5.0 ISO 216
The rate of change in tensile strength ASTM D471
23℃,70 hr,in Reference Fuel A(Isooctane)1.0%ASTM D471
100% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)1.0%ASTM D471
300% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)3.0%ASTM D471
23 ℃, 70 hr, methanol-21%ASTM D471
100% Strain,23℃,70 hr,in Reference Fuel C-21%ASTM D471
300% Strain,23℃,70 hr,in Reference Fuel C-34%ASTM D471
23℃,168 hr,in Reference Fuel A(Isooctane)6.0%ASTM D471
100% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)-2.0%ASTM D471
300% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)-5.0%ASTM D471
23 ℃, 168 hr, methanol-18%ASTM D471
100% Strain,23℃,168 hr,in Reference Fuel C-16%ASTM D471
300% Strain,23℃,168 hr,in Reference Fuel C-28%ASTM D471
23℃,336 hr,in Reference Fuel A(Isooctane)0.0%ASTM D471
100% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)0.0%ASTM D471
300% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)0.0%ASTM D471
23℃,336 hr,in Reference Fuel C-19%ASTM D471
100% Strain,23℃,336 hr,in Reference Fuel C-15%ASTM D471
300% Strain,23℃,336 hr,in Reference Fuel C-27%ASTM D471
23℃,504 hr,in Reference Fuel A(Isooctane)7.0%ASTM D471
100% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-1.0%ASTM D471
300% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-3.0%ASTM D471
23℃,504 hr,in Reference Fuel C-18%ASTM D471
100% Strain,23℃,504 hr,in Reference Fuel C-14%ASTM D471
300% Strain,23℃,504 hr,in Reference Fuel C-28%ASTM D471
100 ℃, 70 hr, in ASTM # 1 oil15%ASTM D471
100% Strain,100℃,70 hr,in ASTM #1 Oil-2.0%ASTM D471
300% Strain,100℃,70 hr,in ASTM #1 Oil2.0%ASTM D471
100 ℃, 70 hr, in ASTM # 3 oil14%ASTM D471
100% Strain,100℃,70 hr,in ASTM #3 Oil2.0%ASTM D471
300% Strain,100℃,70 hr,in ASTM #3 Oil11%ASTM D471
100℃,168 hr,in ASTM #1 Oil1.0%ASTM D471
100% Strain,100℃,168 hr,in ASTM #1 Oil-1.0%ASTM D471
300% Strain,100℃,168 hr,in ASTM #1 Oil-2.0%ASTM D471
100℃,168 hr,in ASTM #3 Oil18%ASTM D471
100% Strain,100℃,168 hr,in ASTM #3 Oil3.0%ASTM D471
300% Strain,100℃,168 hr,in ASTM #3 Oil10%ASTM D471
100℃,336 hr,in ASTM #1 Oil-10%ASTM D471
100% Strain,100℃,336 hr,in ASTM #1 Oil-3.0%ASTM D471
300% Strain,100℃,336 hr,in ASTM #1 Oil-5.0%ASTM D471
100℃,336 hr,in ASTM #3 Oil20%ASTM D471
100% Strain,100℃,336 hr,in ASTM #3 Oil4.0%ASTM D471
300% Strain,100℃,336 hr,in ASTM #3 Oil2.0%ASTM D471
100℃,504 hr,in ASTM #1 Oil-14%ASTM D471
100% Strain,100℃,504 hr,in ASTM #1 Oil0.0%ASTM D471
300% Strain,100℃,504 hr,in ASTM #1 Oil-9.0%ASTM D471
100℃,504 hr,in ASTM #3 Oil1.0%ASTM D471
100% Strain,100℃,504 hr,in ASTM #3 Oil2.0%ASTM D471
300% Strain,100℃,504 hr,in ASTM #3 Oil-2.0%ASTM D471
The rate of change in tensile strength ISO 175
23℃,70 hr,in Reference Fuel A(Isooctane)1.0%ISO 175
100% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)1.0%ISO 175
300% Strain,23℃,70 hr,in Reference Fuel A(Isooctane)3.0%ISO 175
23 ℃, 70 hr, methanol-21%ISO 175
100% Strain,23℃,70 hr,in Reference Fuel C-21%ISO 175
300% Strain,23℃,70 hr,in Reference Fuel C-34%ISO 175
23℃,168 hr,in Reference Fuel A(Isooctane)6.0%ISO 175
100% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)-2.0%ISO 175
300% Strain,23℃,168 hr,in Reference Fuel A(Isooctane)-5.0%ISO 175
23 ℃, 168 hr, methanol-18%ISO 175
100% Strain,23℃,168 hr,in Reference Fuel C-16%ISO 175
300% Strain,23℃,168 hr,in Reference Fuel C-28%ISO 175
23℃,336 hr,in Reference Fuel A(Isooctane)0.0%ISO 175
100% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)0.0%ISO 175
300% Strain,23℃,336 hr,in Reference Fuel A(Isooctane)0.0%ISO 175
23℃,336 hr,in Reference Fuel C-19%ISO 175
100% Strain,23℃,336 hr,in Reference Fuel C-15%ISO 175
300% Strain,23℃,336 hr,in Reference Fuel C-27%ISO 175
23℃,504 hr,in Reference Fuel A(Isooctane)7.0%ISO 175
100% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-1.0%ISO 175
300% Strain,23℃,504 hr,in Reference Fuel A(Isooctane)-3.0%ISO 175
23℃,504 hr,in Reference Fuel C-18%ISO 175
100% Strain,23℃,504 hr,in Reference Fuel C-14%ISO 175
300% Strain,23℃,504 hr,in Reference Fuel C-28%ISO 175
100 ℃, 70 hr, in ASTM # 1 oil15%ISO 175
100% Strain,100℃,70 hr,in ASTM #1 Oil-2.0%ISO 175
300% Strain,100℃,70 hr,in ASTM #1 Oil2.0%ISO 175
100 ℃, 70 hr, in ASTM # 3 oil14%ISO 175
100% Strain,100℃,70 hr,in ASTM #3 Oil2.0%ISO 175
300% Strain,100℃,70 hr,in ASTM #3 Oil11%ISO 175
100℃,168 hr,in ASTM #1 Oil1.0%ISO 175
100% Strain,100℃,168 hr,in ASTM #1 Oil-1.0%ISO 175
300% Strain,100℃,168 hr,in ASTM #1 Oil-2.0%ISO 175
100℃,168 hr,in ASTM #3 Oil18%ISO 175
100% Strain,100℃,168 hr,in ASTM #3 Oil3.0%ISO 175
300% Strain,100℃,168 hr,in ASTM #3 Oil10%ISO 175
100℃,336 hr,in ASTM #1 Oil-10%ISO 175
100% Strain,100℃,336 hr,in ASTM #1 Oil-3.0%ISO 175
300% Strain,100℃,336 hr,in ASTM #1 Oil-5.0%ISO 175
100℃,336 hr,in ASTM #3 Oil20%ISO 175
100% Strain,100℃,336 hr,in ASTM #3 Oil4.0%ISO 175
300% Strain,100℃,336 hr,in ASTM #3 Oil2.0%ISO 175
100℃,504 hr,in ASTM #1 Oil-14%ISO 175
100% Strain,100℃,504 hr,in ASTM #1 Oil0.0%ISO 175
300% Strain,100℃,504 hr,in ASTM #1 Oil-9.0%ISO 175
100℃,504 hr,in ASTM #3 Oil1.0%ISO 175
100% Strain,100℃,504 hr,in ASTM #3 Oil2.0%ISO 175
300% Strain,100℃,504 hr,in ASTM #3 Oil-2.0%ISO 175
Change rate of ultimate elongation ASTM D471
23℃,70 hr,in Reference Fuel A(Isooctane)-4.0%ASTM D471
23 ℃, 70 hr, methanol-1.0%ASTM D471
23℃,168 hr,in Reference Fuel A(Isooctane)-6.0%ASTM D471
23 ℃, 168 hr, methanol-8.0%ASTM D471
23℃,336 hr,in Reference Fuel A(Isooctane)-3.0%ASTM D471
23℃,336 hr,in Reference Fuel C-4.0%ASTM D471
23℃,504 hr,in Reference Fuel A(Isooctane)-2.0%ASTM D471
23℃,504 hr,in Reference Fuel C-5.0%ASTM D471
100 ℃, 70 hr, in ASTM # 1 oil10%ASTM D471
100 ℃, 70 hr, in ASTM # 3 oil3.0%ASTM D471
100℃,168 hr,in ASTM #1 Oil8.0%ASTM D471
100℃,168 hr,in ASTM #3 Oil5.0%ASTM D471
100℃,336 hr,in ASTM #1 Oil6.0%ASTM D471
100℃,336 hr,in ASTM #3 Oil10%ASTM D471
100℃,504 hr,in ASTM #1 Oil19%ASTM D471
100℃,504 hr,in ASTM #3 Oil10%ASTM D471
Changes in tensile stress during fracture ISO 175
23℃,70 hr,in Reference Fuel A(Isooctane)-4.0%ISO 175
23 ℃, 70 hr, methanol-1.0%ISO 175
23℃,168 hr,in Reference Fuel A(Isooctane)-6.0%ISO 175
23 ℃, 168 hr, methanol-8.0%ISO 175
23℃,336 hr,in Reference Fuel A(Isooctane)-3.0%ISO 175
23℃,336 hr,in Reference Fuel C-4.0%ISO 175
23℃,504 hr,in Reference Fuel A(Isooctane)-2.0%ISO 175
23℃,504 hr,in Reference Fuel C-5.0%ISO 175
100 ℃, 70 hr, in ASTM # 1 oil10%ISO 175
100 ℃, 70 hr, in ASTM # 3 oil3.0%ISO 175
100℃,168 hr,in ASTM #1 Oil8.0%ISO 175
100℃,168 hr,in ASTM #3 Oil5.0%ISO 175
100℃,336 hr,in ASTM #1 Oil6.0%ISO 175
100℃,336 hr,in ASTM #3 Oil10%ISO 175
100℃,504 hr,in ASTM #1 Oil19%ISO 175
100℃,504 hr,in ASTM #3 Oil10%ISO 175
The rate of change in Shore hardness ASTM D471
Shore D, 23 ℃, 70 hr, in reference fuel A (isooctane)-2.0 ASTM D471
Shore D, 23°C, 70 hr, in Reference Fuel C-11 ASTM D471
Shore D, 23 ℃, 168 hr, in reference fuel A (isooctane)-2.0 ASTM D471
Shore D, 23 ℃, 168 hr, in reference fuel-11 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-11 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-11 ASTM D471
Shore D, 100°C, 70 hr, in ASTM #1 Oil-3.0 ASTM D471
Shore D, 100 ℃, 70 hr, in ASTM # 3 oil-3.0 ASTM D471
Shore D, 100°C, 168 hr, in ASTM #1 Oil-3.0 ASTM D471
Shore D, 100 ℃, 168 hr, in ASTM # 3 oil-2.0 ASTM D471
Shore D, 100 ℃, 336 hr, in ASTM # 1 oil-5.0 ASTM D471
Shore D, 100 ℃, 336 hr, in ASTM # 3 oil-3.0 ASTM D471
Shore D, 100 ℃, 504 hr, in ASTM # 1 oil-5.0 ASTM D471
Shore D, 100 ℃, 504 hr, in ASTM # 3 oil-3.0 ASTM D471
The rate of change in Shore hardness ISO 175
Shore D, 23 ℃, 70 hr, in reference fuel A (isooctane)-2.0 ISO 175
Shore D, 23°C, 70 hr, in Reference Fuel C-11 ISO 175
Shore D, 23 ℃, 168 hr, in reference fuel A (isooctane)-2.0 ISO 175
Shore D, 23 ℃, 168 hr, in reference fuel-11 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-11 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-11 ISO 175
Shore D, 100°C, 70 hr, in ASTM #1 Oil-3.0 ISO 175
Shore D, 100 ℃, 70 hr, in ASTM # 3 oil-3.0 ISO 175
Shore D, 100°C, 168 hr, in ASTM #1 Oil-3.0 ISO 175
Shore D, 100 ℃, 168 hr, in ASTM # 3 oil-2.0 ISO 175
Shore D, 100 ℃, 336 hr, in ASTM # 1 oil-5.0 ISO 175
Shore D, 100 ℃, 336 hr, in ASTM # 3 oil-3.0 ISO 175
Shore D, 100 ℃, 504 hr, in ASTM # 1 oil-5.0 ISO 175
Shore D, 100 ℃, 504 hr, in ASTM # 3 oil-3.0 ISO 175
Volume change ASTM D471
23℃,70 hr,in Reference Fuel A0.0%ASTM D471
23 ℃, 70 hr, methanol22%ASTM D471
23℃,168 hr,in Reference Fuel A1.0%ASTM D471
23 ℃, 168 hr, methanol22%ASTM D471
23℃,336 hr,in Reference Fuel A1.0%ASTM D471
23℃,336 hr,in Reference Fuel C24%ASTM D471
23℃,504 hr,in Reference Fuel A1.0%ASTM D471
23℃,504 hr,in Reference Fuel C24%ASTM D471
100 ℃, 70 hr, in ASTM # 1 oil0.0%ASTM D471
100 ℃, 70 hr, in ASTM # 3 oil4.0%ASTM D471
100℃,168 hr,in ASTM #1 Oil0.0%ASTM D471
100℃,168 hr,in ASTM #3 Oil4.0%ASTM D471
100℃,336 hr,in ASTM #1 Oil0.0%ASTM D471
100℃,336 hr,in ASTM #3 Oil5.0%ASTM D471
100℃,504 hr,in ASTM #1 Oil0.0%ASTM D471
100℃,504 hr,in ASTM #3 Oil5.0%ASTM D471
Volume change ISO 175
23℃,70 hr,in Reference Fuel A0.0%ISO 175
23 ℃, 70 hr, methanol22%ISO 175
23℃,168 hr,in Reference Fuel A1.0%ISO 175
23 ℃, 168 hr, methanol22%ISO 175
23℃,336 hr,in Reference Fuel A1.0%ISO 175
23℃,336 hr,in Reference Fuel C24%ISO 175
23℃,504 hr,in Reference Fuel A1.0%ISO 175
23℃,504 hr,in Reference Fuel C24%ISO 175
100 ℃, 70 hr, in ASTM # 1 oil0.0%ISO 175
100 ℃, 70 hr, in ASTM # 3 oil4.0%ISO 175
100℃,168 hr,in ASTM #1 Oil0.0%ISO 175
100℃,168 hr,in ASTM #3 Oil4.0%ISO 175
100℃,336 hr,in ASTM #1 Oil0.0%ISO 175
100℃,336 hr,in ASTM #3 Oil5.0%ISO 175
100℃,504 hr,in ASTM #1 Oil0.0%ISO 175
100℃,504 hr,in ASTM #3 Oil5.0%ISO 175

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level
1.50 mmHB UL 94

Supplementary informationNominal valueUnitTest method
Compression load ASTM D575
10% deflection3.86MPaASTM D575
15% deflection5.52MPaASTM D575
2% deflection0.689MPaASTM D575
20% deflection6.89MPaASTM D575
25% deflection8.96MPaASTM D575
5% deflection2.07MPaASTM D575
50% deflection23.4MPaASTM D575

Process Conditions
injectionNominal 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 temperature193 to 204°C
Barrel middle temperature193 to 204°C
Barrel front temperature199 to 210°C
Nozzle temperature204 to 210°C
Processing (melt) temperature204 to 216°C
Mold temperature15 to 40°C
Injection pressure41.4 to 103MPa
Injection speedSlow-Moderate 
Back pressure1.38MPa
Screw speed40 to 80rpm
Clamping force4.1 to 6.9kN/cm²
Cushion3.18mm
Screw length to diameter ratio20.0:1.0 
Screw compression ratio2.5:1.0 to 3.0:1.0 

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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