Laripur® 5850 is a polyester-based Thermoplastic Polyurethane (TPU) available in pellet form and conveniently packaged in bags or octabins, caters specifically to the consumer goods market. With a primary focus on Footwear applications, this TPU is expertly designed for injection molding processes, with a notable specialization in the production of ski boots. The polymer, classified as Thermoplastic Polyurethane (Polyester based), underscores its suitability for demanding manufacturing requirements, offering a reliable solution for the production of high-performance and durable footwear, particularly ski boots, in the consumer goods sector.

Polymer Name: Thermoplastic Polyurethane (Polyester based)

Processing Methods: Injection Molding

Technical Data Sheet

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Identification & Functionality


Applications & Uses

Plastics & Elastomers Processing Methods
Processing Recommendations

Material needs to be dried prior processing at 175-195 °F for 3 hours, preferably using a dehumidifying drier fed by air exhibiting a dew point lower than -22°F.
Suggested molding temperature profile

Zone Temperature
Zone 1 385°F
Zone 2 395°F
Zone 3 400°F
Nozzle 395°F


Being affected by type of machine used, processing conditions and downstream equipment, the temperature profiles as given above has to be considered as just indicative.


Physical Form
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Tensile Strength9100psiASTM D412
Vicat Softening Point248°FASTM D1525
Tensile Modulus (at 50%)2200psiASTM D412
Tensile Modulus (at 300%)6100psiASTM D412
Tensile Modulus (at 100%)2600psiASTM D412
Tear Strength165N/mmASTM D624
Specific Gravity1.18g/cm³ASTM D792
Shore Hardness58A ScaleASTM D2240
Flexural Modulus39000psiASTM D1525
Abrasion Loss40mm³DIN 53516
Elongation (at Break)430%ASTM D412

Packaging & Availability

Packaging Type
Regional Availability
  • Canada
  • USA
Packaging Information

Laripur® 5850 is supplied in regular pellet form and it is packaged in 25 kg bags or 500 kg and 1000 kg octabins.

Storage & Handling

Shelf Life
6 months
Storage and Shelf Life Conditions
  • Laripur® 5850 must be stored in its original and sealed containers and kept in a dry and well ventilated place; avoiding the direct sun radiation.
  • The shelf life of Laripur® 5850 will be 6 months from the date of delivery to the final customer, when stored in its original sealed packaging and in proper conditions.