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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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Technical Datasheet | Supplied by Daikin
NEOFLON™ EFEP RP-4020 by Daikin is an ethylene fluorinated ethylene propylene (EFEP) copolymer grade. Exhibits high purity, high transparency, improved heat sealing-, electrical- and non-sticking properties. Offers low reactivity, thermal- and chemical stability, resistance to heat-, weather- and chemicals. Possesses low mold shrinkage, low coefficient of friction, low processing temperature and very low melt temperature. Designed for processing by tubing extrusion and injection molding. It is suitable for tubing extrusion and processes with other resins (nylons, EVOH, plastics, inorganic metals, glass, metals, modified PE and ETFE) without adhesive or etching. NEOFLON™ EFEP RP-4020 is recommended for injection molding parts, bottles, containers, mono- and multi-layer tubing/films applications.
Product Type
Fluoropolymer > FEP
Physical Form
Product Status
Geographical Availability
North America, South and Central America
Applications/ Recommended for
  • Packaging > Industrial - Films, standard
  • Packaging > Industrial - Bottles, standard
  • Injection molding - thermoplastics
  • Extrusion
Key Features
  • Chemical resistance, Good
  • Copolymer
  • Heat Resistance, High
  • Heat Seal, Good
  • Purity, High
  • Thermal Stability, Good
  • Transparency, High
  • Weather Resistance, Good

NEOFLON™ EFEP RP-4020 Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Tensile Strength
40 - 60 MPa
( )
ASTM D7472
Tensile Elongation
370 - 530 %
( )
ASTM D7472
Flexural Modulus
1300 MPa
( )

NEOFLON™ EFEP RP-4020 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Rear Temperature
180 - 200 °C
Middle Temperature
200 - 220 °C
Front Temperature
230 - 250 °C

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