FEP – Type A

A tough Level I packaging material primarily used in aerospace and military applications. Excellent at cryogenic temperatures.
FEP is a transparent, thermoplastic film that can be heat-sealed, thermoformed, vacuum-formed, heat-bonded, welded, metalized, laminated and combined with dozens of other materials. It is also an excellent hot-melt adhesive. . FEP offers exceptional chemical compatibility, electrical reliability, mechanical toughness, long-term weatherability, reliability, and a wide thermal range.

 

 

Features
FEP is the most inert of all plastics
Low permeability to liquids, gases, moisture and organic vapors
Compatible with liquid oxygen
Non-flammable
Excellent solvent resistance
Superior anti-stick and low-frictional properties
Extremely resistant to impact and tearing
US FDA-approved for packaging food
High dielectric strength
Continuous service temperature: -400 to +400 F (-240 to +205 C)
Melting range: 500 -540 F (260 -280 C)
Contains no plasticizers or other foreign materials
Cleaned and packaged in our Class 10/100 clean room, and certified to KNF Clean Room Products Level I. (Other government, industry, and company specs met on request.)
Sheets and bags in a variety of standard sizes and thicknesses.
Custom sizes and gauges also available

PROPERTIES OF FEP FILM

 

Property

Test Method

Typical Value

Tensile Strength @ Break

D882

3000 psi

Elongation @ Break

D882

170%

Impact Strength

pneumatic tester

144 ft.-lb/in.

Water Absorption

--

<0.01%

Melting Point

D2116

260–280°C

Coefficient of Thermal Conductivity

Cenco-Fitch

1.35 Btu in

Flammability Classification*

UL 94

VTM-0

Optical

--

Clear Transparent

Surface Resistivity

D257

>1x1016 ohms/square

 

*This classification rating is not intended to reflect hazards presented by this or any other material under actual fire conditions. Other specifications available upon request.

KNF Corporation
734 West Penn Pike
Tamaqua, PA. 18252
Phone: (570) 386-3550 || Fax: (570) 386-3703
Email Us: KNF Contacts

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