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TABLE ON TECHNICAL FEATURES OF POLYPROPYLENE

   FEATURES

DWU - DWST

PPs

Low specific weight, physiologic acceptability, can be shaped with vacuum, close to zero water absorption, high PE-DWU heat stability.

Low specific weight, flame holder according to DIN 4102 B1 Norm, can be formed in vacuum, close to zero water absorption, Continuous heat resistance.

   TECHNICAL INFORMATION

DWU

DWST

PPs

   Density g/cm3 ISO 1183

0.91

0.90

0.95

   Yielding Stress N/mm2 DIN EN ISO 527

32

30

32

   Yielding Stretching % DIN EN ISO 527

8

8

8

   Breaking Strain %

70

70

70

   Flexibility-E module Mpa DIN EN ISO 527

1400

1400

1400

   Impact resistance kW / m2 DIN EN ISO 2039-1

unbreakable

unbreakable

   Jaggy impact resistance kJ / m2 DIN EN ISO 179

7

7

6

   Marble jag hardness n/mm2 DIN EN ISO 2039-1

70

70

70

   Shore hardness D ISO 868

72

70

72

   Average thermal expansion coefficient K-1 DIN 53752

1.6 x 10-4

1.6 x 10-4

   Thermal Conductivity W/m-K DON 52612

0.22

0.22

0.22

   Fire Reaction

flammable

DIN 4102 B1
+ UL 94-VO

   Dielectric resistance kV/mm VDE IEC 167

52

58

22

   Surface resistivity ohm DIN IEC 167

1014

1014

1014

   Use temperature range ºC

between 0 and +100

between 0 and +100

   Chemical resistance

High resistance to acids, alkalis and solvents

   Physiological acceptability according to norms of BgVV and FDA (USA)

yes

yes

no

   Welding

yes

yes

yes

   Agglutination, fiberglass reinforcement

Possible on plates with cloth back

   Varnishing, printing

Only after surface preparation

   Hot working

good

good

good