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Plastics & Elastomers
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Plastics & Elastomers
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Pibiflex® 8394 NAT

Pibiflex® 8394 NAT is a thermoplastic copolyester grade formed by rigid crystalline PBT segments and soft amorphous long chain polyether segments. The soft segments provide elasticity and rubber-like properties, while the hard segments provide the processing ease and the strength typical of engineering plastics. Is suitable for processing by injection molding. Exhibits excellent toughness, elasticity, high creep resistance, impact strength, flexural fatigue resistance, good flexibility at low temperatures, good retention of characteristic at high temperatures and outstanding chemical resistance (to fuels, oils, greases). Shows good adhesion properties to many polymeric materials including ABS, PBT, PC, PC/PBT, PC/ABS, EVA, SEBS, TPU and to many paints, glues and metals. Is fully recyclable material and it can be reused after regrinding. Used in automotive, electrical appliances, industrial and sports application. Is approved for automotive applications by the most important automotive manufacturers and Tier 1.
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Product Type
Polyester TPE > COPE
Product Status
COMMERCIAL
Applications/ Recommended for
  • Gears
  • Electrical markets > Jacketing
  • Sealants, seals & gaskets
  • Wiring & Cables
  • Sports & Leisures
  • Automotive > Under the hood - Hoses
  • Automotive > Internal - Dashboard
  • Automotive > Internal - Airbags and covers
  • Automotive > Internal - Door module/panels
  • Automotive > Under the hood - CVJ Boots
  • Automotive > Internal - Steering wheel
  • Injection molding - thermoplastics

Pibiflex® 8394 NAT Properties

Thermal Properties

Value & Unit
Test Condition
Test Method
Melting Point
198 °C
((DSC)) 
ASTM D3417
Vicat Softening Temperature
175 °C
(1kg/120 °C) 
ASTM D1525
Deflection Temperature at 0.46 MPa (66 psi)
73 °C
ASTM D648

Pibiflex® 8394 NAT Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Drying Time
3 - 4 hr
Zone 1 Temp.
220 - 230 °C
Drying Temperature
90 - 120 °C
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