LPR 8025

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TECHNICAL DATA SHEET
 
Description: LARIPUR 8025/8025EG is a polyester based TPU. The standard version is designed e.g. for injection molding of sport soles,wheels,screen elements,masks and technical items while EG one for the extrusion of hoses,profile,transmission belts and film.
 

Physical Properties

Typical Value

Unit

Test Method

Specific Gravity

1.19

gr/cm³

DIN 53479

Shore Hardness

82

A

DIN 53505

Abrasion Loss

30

mm3

DIN 53516

Tensile Modulus: 50%

4.3

N/mm²

DIN 53504

100%

5.6

N/mm²

DIN 53504

300%

13.7

N/mm²

DIN 53504

Tensile Strength

53.2

N/mm²

DIN 53504

Elongation at Break

620

%

DIN 53504

Tear Strength

82

N/mm

DIN 53515

VICAT Softening Point

73

°C

ISO 306

Compression Set: 70h/23°C

20

%

DIN53517

22h/70°C

42

%

DIN53517


The grade also suitable for extrusion are indicated by the EG or AE end code and consequently they have to be ordered with such code when used in this application.
 
This technical note has been written on baseing our present best knowledge but the above mentioned data have not to be released as a specification for the material in object.
 
Properties reported in this Data Sheet are determined on annealed specimens obtained by injected test plaques and mostly represent an average of values gathered from a significative number of productionlots.
 
Even if we guarantee the quality consistency of the LARIPUR products we could periodically issue up-dated version of this Technical Data Sheet and modify the respective sales specification as well.
 
PROCESS RECOMMENDATION
 
Predrying Condition:
 
Material needs to be dried prior processing at 80°-90°C for 3 hours, preferably using a dehumidifying drier feeded by air exhibiting a dew point lower than -30°C.
 
Processing
 
Recommended Molding Temperature Profile
 
Recommended Extrusion Temperature Profile
 

 

°C

Zone 1

180

Zone 2

185

Zone 3

190

Nozzle

185


Being affected by type of machine used, processing condition and downstream equipment, the temperature profiles as given above has to be considered just as indicative.
 
Flammability test V-2 ( UL94 Vertical burning )
 
Appearance Trasparent. ( Evaluated on 6 mm thick test plaques )
 
Approvals EC and FDA food contact approved.
 
Health and security The product is not considered to be dangerous, nevertheless Safety Material Data Sheet is available upon request
 
Supply and package LPR 8025/8025EG is supplied in regular pellet form and it is packaged in 25 kg bags or 500 kg and 1000 kg octabins.
 
The information presented herein are given in good faith but without warranty. They are based on our experience, indicate our laboratory work results and do not necessarily indicate final product performance. We cannot be held liable for the results obtained with our products and for any loss or accident that may result from its use . Our suggestions do not release you from the obligation to check its validity and to test our products for both their process and end use application.COIM assumes no obligation or liability for the description, data and information given or result obtained as production testing and end product performance are the responsibility of the user. All our products are sold in accordance with our General Conditions of Sale. We don't make any warranties, express or implied, including, but not limited to the merchantability and fitness for a particular purpose.

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