ROW INC. Encapsulated Gaskets and O-Rings ROW INC. Encapsulated Gaskets and O-Rings
Contact ROW INC.
About ROW INC.
ROW INC. Site Map
ROW INC. back to Home
ROW INC. Encapsulated Gaskets and O-Rings
ROW INC. O-RingsROW INC. Encapsulated GasketsNew Products from ROW INC.Choose Encapsulated Gaskets and O-Rings from ROW INC.Tech Specs for ROW INC. ProductsTest Reports for ROW INC. ProductsEngineering Tools for using ROW INC. Products

FEP (Fluorinated Ethylene Propylene) Detailed Properties

[PDF version]

Simply use the links below to view test reports.
[Silicone] [Viton®] [EPDM] [FEP] [PFA]

The table below lists a generally accepted summary of properties that we believe to be reliable. Please note that many of these resins are produced in several varieties and property characteristics may vary. Therefore, determination of resin is dependent on the application and this table is only meant to serve as a general guideline.

FEP Properties ASTM or Unit FEP

MECHANICAL PROPERTIES

Specific Gravity D792 2.15
Elongation % D638 250~330
Tensile Strength (psi) D638 2,800~5,000
Flexural Strength (psi) D790 no break
Compressive Strength D695 2,200
Tensile Elastic Modulus 
(Young's Modulus) (psi)
D638 50,000
(psi)
Flexural Modulus
103MPa (103kgf/cm2)
D790 78,000~
92,000
D790 0.5-0.6
(5.5-6.5)
Flex Life
(MIT cycles)
D2176 5,000~
80,000
Hardness Durometer
  Shore D
D636 D55
Coefficient of Friction on steel 0.05
Abrasion Resistance
1000 revs.
Taber 14~20
Impact Strength IZOD
73°F/23°C, notched ft/lbs/in
D256 no break

THERMAL PROPERTIES

Melting Point °C
(°F)
260
(500)
Upper Service
Temperature(20,000h)
°C
(°F)
200
(392)
Flame Rating** UL 94 V-0
Thermal Conductivity BTU/hr/ft2/deg F in 1.4
cal/sec/cm2,°C/cm 6 x 10-4
Linear Coefficient of Thermal Expansion 10-5 °C D696 8.3~10.5
Heat of Fusion BTU/LB 11
Heat of Combustion BTU/LB 2200
Low Temperature Embrittlement °C
(°F)
-268
(-450)

ELECTRICAL PROPERTIES

Dielectric Constant D150/103Hz 2.1
D150/106Hz 2.1
Dielectric Strength
10 mil film
D149 >2000
Volume Resistivity ohm-cm D257 >1018
Surface Resistivity
ohm/sq.
D257 >1017

GENERAL PROPERTIES

Chemical/Solvent
Resistance
D543 Excellent
Water Absorption, 24h % <0.01
Deformation Under Load *D621/100°C 5.0
**D621/25°C 3.0
Refractive Index   1.338
Limiting Oxygen Index >95 >95
Properties ASTM or Unit FEP

Design Recommendation Disclaimer:
Recommendations on application design and material selection are based upon available technical data and are offered as suggestions only. Each user should conduct evaluations to determine the suitability for his particular application. ROW, Inc. offers no express or implied warranties concerning the form, fit, or function of a product in any application.

O-Rings  •  Gaskets  •  New Products  •  Why Row  •  Tech Specs  •  Test Reports  •  Engineering Tools  •  Contact Us  •  About Us  •  Site Map  •  Home
© Copyright ROW INC., 729 W. Winthrop Avenue, Addison, IL 60101
(800) 770-7128 / (630) 628-9221 • Fax: (630) 628-9229

Email Us

Viton® is a registered trademark of DuPont Performance Elastomers.

Encapsulated O-Rings  USP Class VI O Rings   Other Resources