PRODUCT INFORMATION DuPont™ Hytrel 7246

1 PRODUCT INFORMATIONDuPont Hytrel 7246 THERMOPLASTIC POLYESTER ELASTOMERP roduct InformationCommon features of Hytrel thermoplastic polyester elastomer include mechanical and physical properties such as exceptional toughness and resilience, high resistance to creep, impact andflex fatigue, flexibility at low temperatures and good retention of properties at elevated temperatures. In addition, it resists many industrial chemicals, oils and solvents. Special gradesinclude heat stabilised, flame retardant, food contact compliant, blow molding and extrusion grades. Concentrates offered include black pigments, UV protection additives, heat stabilisers,and flame retardants.

2 Hytrel thermoplastic polyester elastomer is plasticiser good melt stability of Hytrel thermoplastic polyester elastomer normally enables the recycling of properly handled production waste. If recycling is not possible, DuPont recommends, asthe preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped disposal, local regulations have to be observed. Hytrel thermoplastic polyester elastomer typically is used in demanding applications in the automotive, fluid power, electrical/electronic, consumer goods, appliance and power tool,sporting goods, furniture, industrial and off-road transportation/equipment 7246 is a high modulus grade with nominal hardness of 72D.

3 It contains non-discoloring stabilizer. It can be processed by manyconventional thermoplastic processing techniques like injection molding and applications: Tubing, wire and cable jackets, gears and sprockets, oil field informationValueUnitTest StandardResin IdentificationTPC-ET-ISO 1043 Part Marking Code>TPC-ET<-ISO 11469 Rheological propertiesValueUnitTest StandardMelt volume-flow rate12cm /10minISO 1133 Temperature240 CISO 1133 Melt mass-flow 1133 Melt mass-flow rate, Temperature240 C-Melt mass-flow rate, shrinkage, 294-4, 2577 Moulding shrinkage, 294-4, 2577 Mechanical properties (TPE)

4 ValueUnitTest StandardTensile Modulus525 MPaISO 527-1/-2 Yield stress26 MPaISO 527-1/-2 Yield strain26%ISO 527-1/-2 Stress at 5% strain14 MPaISO 527-1/-2 Stress at 10% strain23 MPaISO 527-1/-2 Stress at 50% strain24 MPaISO 527-1/-2 Stress at break50 MPaISO 527-1/-2 Strain at break>300%ISO 527-1/-2 Nominal strain at break530%ISO 527-1/-2 Tear strength, parallel182kN/mISO 34-1 Tear strength, normal172kN/mISO 34-1 Abrasion resistance100mm ISO 4649 Shore D hardness, max68-ISO 868 Shore D hardness, 15s64-ISO 868 Mechanical propertiesValueUnitTest StandardFlexural Modulus550 MPaISO 178 Tensile creep modulusISO 899-11h360 MPa1000h310 MPaPage: 1 of 16 PDF Created: 2014-02-25 - Revised: 2011-05-24To find out more, visit DuPont Performance Polymers or contact nearest DuPont AmericaAsia PacificEurope/Middle East/AfricaTel: +1 302 999-4592 Toll-Free (USA): 800 441-0575 Tel: +81 3 5521 8600 Tel: +41 22 717 51 11 Copyright 2014 DuPont.

5 The DuPont Oval Logo is a trademark or registered trademark of du Pont de Nemours andCompany or its affiliates. All rights Hytrel 7246 THERMOPLASTIC POLYESTER ELASTOMERC harpy notched impact strengthISO 179/1eA23 C36kJ/m -30 C8kJ/m -40 C7kJ/m Tensile notched impact strength, 23 C300kJ/m ISO 8256/1 Brittleness temperature-97 CISO 974 Izod notched impact strengthISO 180/1A23 C38kJ/m -40 C7kJ/m Thermal propertiesValueUnitTest StandardMelting temperature, 10 C/min218 CISO 11357-1/-3 Glass transition temperature, 10 C/min25 CISO 11357-1/-2 Temp. of deflection under loadISO 75-1 MPa50 MPa100 CVicat softening temperatureISO 30650 C/h, 50N140 C50 C/h, 10N205 CCoeff.

6 Of linear therm. expansion, parallel200E-6/KISO 11359-1/-2 Coeff. of linear therm. expansion, normal200E-6/KISO 11359-1/-2 Thermal conductivity of (m K)-Spec. heat capacity of melt2150J/(kg K)-Eff. thermal /s-RTI, electrical, CUL 746 BRTI, impact, CUL 746 BRTI, strength, CUL 746 BFlammabilityValueUnitTest StandardBurning Behav. at nom. 60695-11-10 Thickness 60695-11-10UL recognitionUL--Oxygen index23%ISO 4589-1/-2 Electrical propertiesValueUnitTest StandardRelative permittivityIEC factorIEC 60250100Hz160E-41 MHz300E-4 Volume resistivity2E10 Ohm*mIEC 60093 Surface resistivity>1E15 OhmIEC 60093 Electric strength20kV/mmIEC 60243-1 Comparative tracking index600-IEC 60112 Other propertiesValueUnitTest StandardHumidity absorption, to ISO 62 Water absorption, to ISO 62 Density1260kg/m ISO 1183 Density of melt1110kg/m -Water Absorption, Immersion D 570 VDA PropertiesValueUnitTest StandardBurning rate.

7 Thickness 1 mm0[1]mm/minISO 3795 (FMVSS 302)Emission of organic compounds334 gC/gVDA 2771: DNIC haracteristicsPage: 2 of 16 PDF Created: 2014-02-25 - Revised: 2011-05-24To find out more, visit DuPont Performance Polymers or contact nearest DuPont AmericaAsia PacificEurope/Middle East/AfricaTel: +1 302 999-4592 Toll-Free (USA): 800 441-0575 Tel: +81 3 5521 8600 Tel: +41 22 717 51 11 Copyright 2014 DuPont. The DuPont Oval Logo is a trademark or registered trademark of du Pont de Nemours andCompany or its affiliates. All rights Hytrel 7246 THERMOPLASTIC POLYESTER ELASTOMERI njection MouldingFilm ExtrusionProfile ExtrusionSheet ExtrusionOther ExtrusionCastingThermoformingProcessingP elletsDelivery formLight stabilised or stableto lightSpecial characteristicsNorth AmericaEuropeAsia PacificSouth and Central AmericaNear East/AfricaGlobalRegional AvailabilityProcessing TextsInjection moldingPREPROCESSINGD rying recommended = YesDrying temperature = 110 CDrying time.

8 Dehumidified dryer = 2-3 hProcessing moisture content = < %PROCESSINGMelt temperature optimum = 245 CMold temperature optimum = 45 CMold temperature range = 45-55 CHold Pressure Optimum = 70 MPaProfile extrusionPREPROCESSINGD rying temperature = 110 CDrying time, dehumidified dryer = 2-3 hProcessing moisture content = < temperature optimum = 235 CMelt temperature range = 235-250 CPage: 3 of 16 PDF Created: 2014-02-25 - Revised: 2011-05-24To find out more, visit DuPont Performance Polymers or contact nearest DuPont AmericaAsia PacificEurope/Middle East/AfricaTel: +1 302 999-4592 Toll-Free (USA): 800 441-0575 Tel: +81 3 5521 8600 Tel: +41 22 717 51 11 Copyright 2014 DuPont.

9 The DuPont Oval Logo is a trademark or registered trademark of du Pont de Nemours andCompany or its affiliates. All rights Hytrel 7246 THERMOPLASTIC POLYESTER ELASTOMERD iagramsViscosity-shear rate Shear rate in 1/sViscosity in Pa s1E21E31E41E11E21E3220 C240 C260 CShearstress-shear rate Shear rate in 1/sShearstress in Pa1E21E31E41E51E6220 C240 C260 CPage: 4 of 16 PDF Created: 2014-02-25 - Revised: 2011-05-24To find out more, visit DuPont Performance Polymers or contact nearest DuPont AmericaAsia PacificEurope/Middle East/AfricaTel: +1 302 999-4592 Toll-Free (USA): 800 441-0575 Tel: +81 3 5521 8600 Tel: +41 22 717 51 11 Copyright 2014 DuPont.

10 The DuPont Oval Logo is a trademark or registered trademark of du Pont de Nemours andCompany or its affiliates. All rights Hytrel 7246 THERMOPLASTIC POLYESTER ELASTOMERD ynamic Shear modulus-temperature Temperature in CShear modulus in MPa-500501001502001E11E21E3G'Dynamic Tensile modulus-temperature Temperature in CDyn. Tensile modulus in MPatan dE" in MPa-100-500501001502001E11E21E31E41E01E1 1E21E31E-31E-21E-11E0 Dyn E TE"tan dPage: 5 of 16 PDF Created: 2014-02-25 - Revised: 2011-05-24To find out more, visit DuPont Performance Polymers or contact nearest DuPont AmericaAsia PacificEurope/Middle East/AfricaTel: +1 302 999-4592 Toll-Free (USA): 800 441-0575 Tel: +81 3 5521 8600 Tel: +41 22 717 51 11 Copyright 2014 DuPont.