ETFE-E4 and LM Low Melting
ETFE-E4 and LM fluoropolymer films are manufactured from specialty grades of of ethylene and tetrafluoroethylene copolymers. These grades are designed to be highly extensible and formable at all manufacturing temperatures when compared to ETFE-E2 film.
ETFE-E4
ETFE-E4 film covers the same operating temperature, -200°C (-328°F) to 165°C (330°F), as ETFE-E2 film. Its elongation characteristics are superior throughout this temperature range, which makes it an ideal candidate for thermoforming to more complex shapes without sacrificing other mechanical and thermal performance characteristics.
ETFE-LM
ETFE-LM film is formulated from a low melting specialty ETFE resin. This allows ETFE-LM to achieve the highest elongation characteristics and lowest force requirements when thermoformed up to 125°C (257°F). ETFE-LM is the perfect choice for deep draws up to and greater than 10:1 ratios, such as complex medical container laminates and liners.
| ETFE-E4 | |
| Features | Benefits |
|---|---|
| Thermally stable thermoplastic with high elongation | Thermoformable to shapes of high complexity |
| Functional temperature range from -200°C (-328°F) to 165°C (330°F) | Suitable for Cryogenic and High temperature Applications |
| Low Surface Energy | Low force sliding characteristics against most common vessel materials |
| Chemically Inert | Will not contaminate or react with many drugs and samples |
| Pinhole Free | Provides a suitable barrier to prevent container contamination |
| Available with C-Treatment | Provides Cementable surface on one or both sides of the film |
| ETFE-LM | |
| Thermally stable thermoplastic with highest elongation | Thermoformable to shapes of extreme complexity |
| Functional temperature range from -200°C (-328°F) to 125°C (257°F) | Suitable for Cryogenic and High temperature Applications |
| Low Surface Energy | Low force sliding characteristics against most common vessel materials |
| Chemically Inert | Will not contaminate or react with many drugs and samples |
| Pinhole Free | Provides a suitable barrier to prevent container contamination |
| Available with C-Treatment | Provides Cementable surface on one or both sides of the film |
CHEMFILM® ETFE-E4 Fluoropolymer Film- Typical Physical Properties*
| Typical Properties | Test Method | CHEMFILM® E4 | Unit of Measurement |
|---|---|---|---|
| General Properties | |||
| Specific Gravity | ASTM D-792 | 1.75-1.79 | |
| Yield (1 mil film) | 22.5 (110) | M2/kg (ft2/15) | |
| Contact Angle | ASTM D-5946 | 96 | % |
| Mechanical Properties | |||
| Tensile Strength (RT) | ASTM D-882 | 51 (7400) | MPa (psi) |
| Elongation (RT) | ASTM D-882 | 400 | % |
| Elastic Modulus (RT) | ASTM D-882 | 860 (125,000) | MPa (psi) |
| Tensile Strength (150C) | ASTM D-882 | 15 (2175) | MPa (psi) |
| Elongation (150C) | ASTM D-882 | 600 | % |
| Elastic Modulus (150C) | ASTM D-882 | 30-50 (4350-7250) | MPa(psi) |
| Heat shrinkage (MD) | 177 °C @30 MINUTES | +/-3 MAX. | % |
| Heat Shrinkage (TD) | 177 °C @30 MINUTES | +/-3 MAX. | % |
| Electrical Properties | |||
| Dielectric Strength (2 mil) | ASTM D-149 | 175 (4500) | KV/MM (V/mil) |
| Volume Specific Resistance | ASTM D-257 | >1x1017 | cm |
| Thermal Properties | |||
| Melting point | DSC | 249-259 (480-495) | °C (°F) |
| Oxygen Index | ASTM D-2863 | 35 | Vol% |
*Represent typical performance properties and should not be used for specification purposes. Contact your Saint-Gobain Performance Plastics representative for more information.
