LPR 4625

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GENERAL DESCRIPTION LARIPUR 4625 is a quality polyester based TPU. It is used e.g. for the production of technical items, sport soles, cattle tags.
 
TYPICAL CHEMICAL- PHYSICAL PROPERTIES
 
The following information is not intended to be used as sales specifications.
 

Parameter

 

Typical Value

Unit

Method

Specific Gravity

 

1.22

gr/cm3

DIN 53479

Shore Hardness

 

46

D

DIN 53505

Abrasion Loss

 

35

mm3

DIN 53516

Tensile Modulus

50%

10.7

 

DIN 53504

 

100%

12.9

N/mm2

 

300%

27.9

 

Tensile Strength

 

56.8

N/mm2

DIN 53504

Elongation at Break

 

530 %

 

DIN 53504

Tear Strength

 

120

N/mm

DIN 53515

Flexural Modulus

 

100

N/mm2

ISO 178

VICAT Softening Point

 

120

ÄC

ISO 306

Compression set:

70h/23ÄC

28 %

 

DIN 53517

 

22h/70ÄC

48 %

 

DIN 53517
 
This technical note has been written based on our present best knowledge, but the above mentioned data have not to be released as a specification for the material in object.
 
The properties reported in this Technical Data Sheet are determined on conditioned specimens obtained from injected test plates and represent an average of values gathered from a significant number of production lots.
 
Even if we guarantee the quality consistency of the LARIPUR products, we could periodically issue updated versions of this Technical Data Sheet and consequently modify the respective sales specifications.
 
The international standards here indicated have to be intended as a reference to carry out the various tests, but the choice of available options and any possible variation are mentioned in our respective internal standards.
 
The grades suitable for extrusion are identified with the EG or AE end code and therefore they have to be ordered with such code when used in this application.
 
STORAGE AND STABILITY
 
LARIPUR 4625 is supplied in regular pellet form and it is packaged in 25 kg bags or 500 kg and 1000 kg octabins
 
LARIPUR 4625 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 4625 will be 6 months from the date of delivery to the final customer, when stored in its original sealed packaging and in proper conditions
 
SAFETY The product is not considered to be dangerous, nevertheless we suggest to read the Material Safety Data Sheet before handling.
 
PROCESSING RECOMMENDATIONS
 
Material needs to be dried prior processing at 80-90ÄC for 3 hours, preferably using a dehumidifying drier fed by air exhibiting a dew point lower than -30ÄC.
 
Suggested moulding temperature profile:
 

Zone

Temperature

Zone 1

190ÄC

Zone 2

195ÄC

Zone 3

200ÄC

Nozzle

195ÄC

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.

LPR 4625 Physical property table download