Product classification:

Cutting film of polytetrafluoroethylene is made by turning processing from pressed preforms, which is an isotropic film and a semi-oriented and oriented film made by re-extrusion from the isotropic film.

SFM-1 (oriented): Used as capacitor dielectric, etc.

SFM-2 (semi-oriented, isotropic): Used as wire insulation, etc.

SFM-3 (oriented, isotropic): Used as insulation and sealing gasket for electrical appliances, etc.

Product features:

1. Resistant to low and high temperatures (-180C -  260C)

2. Corrosion resistance, weather resistance

3. High lubricity, non-adhesion

4. Non-toxic

5. Non-flammable

6. Acid resistance (except molten alkali metals)

7. Antioxidant

Product applications:

1. Used in various electronic and electrical applications such as wires, cables, and battery electrodes.

2. Also used for gasket seals and lubricants that work in various media, as well as for electrical insulators used at various frequencies.

Product specifications:

Product classification    Width (mm)    Thickness (mm)

Cutting film (non-oriented film)    5-1300    0.03-1.0

Semi-oriented film

Oriented film

Note: Length can be further processed according to customer requirements. Please negotiate separately for details.

Main technical indicators:

Item    Unit    CSFM-1    CSFM-2    CSFM-3

Oriented    Semi-oriented    Isotropic    Isotropic    Isotropic

Tensile strength    MPa    ≥30    ≥20    ≥10    ≥30    ≥10

Elongation at break    %    ≥30    ≥60    ≥100    ≥30    ≥100

Dielectric constant at 1MHZ    1.8-2.2    /    /    1.8～2.2    /

Direct current breakdown voltage strength (ambient temperature)    KV/mm    Average value 200    100    40    60    30

** Value 40    10    4    /    /