AVALON® 90 AKU

About
AVALON 90 AKU is a UV-stabilised, high performance, thermoplastic polyurethane-based material for injection moulding. AVALON 90 AKU is part of the AVALON Crystal Range and offers a specially designed, flexible material with a higher degree of transparency compared with conventional TPU at the same hardness. AVALON Crystal materials are particularly suitable for the sporting goods and fashion markets and are supplied with a high level of stabilisation against premature yellowing from sunlight. The features offered include: UV resistance Transparency Durability phthalate free TPU&&

Product Description
SupplierHuntsman
GenericTPU
Material StatusCommercial: Active
FeaturesWeather resistance is good,Good flexibility,Durability
AvailabilitysNorth America,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.21g/cm³ISO 2781

elastic bodyNominal valueUnitTest method
tensile strength ISO 37
fracture45.0MPaISO 37
100% strain8.00MPaISO 37
300% strain16.0MPaISO 37
Tensile strain
fracture450%ISO 37
tear strength110kN/mISO 34-1

MECHANICALNominal valueUnitTest method
Shore hardness ISO 868
Shaw’s A90 ISO 868
Shaw’s D44 ISO 868
Ross Twist Test 
-10℃> 5.0E+4Cycles
23℃> 5.0E+4Cycles
abrasion resistance50.0mm³ISO 4649

Process Conditions
injectionNominal valueUnitTest method
Drying temperature – hot air dryer80 to 90°C
Drying time – hot air dryer2.0hr
Hopper temperature25 to 35°C
Barrel rear temperature195 to 205°C
Barrel middle temperature205 to 215°C
Barrel front temperature210 to 220°C
Nozzle temperature205 to 215°C
Mold temperature25 to 50°C
Injection pressure2.00 to 10.0MPa
Injection speed 
Hold pressure1.00 to 5.00MPa
Back pressure0.0300 to 0.300MPa
Screw speed20 to 80rpm
Screw length to diameter ratio20.0:1.0 to 25.0:1.0 
Screw compression ratio2.0 : 1.0 to 3.0 : 1.0 

Notes
1. Typical properties: these are not to be construed as specifications.
2. BS 5131
3. Method Ba, Angle (Unnicked)
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