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PCTFE

PCTFE Sheet, Rod, Film & Tube

PCTFE or CTFE (originally known as Kel-F*) has many of the properties similar to other fluoropolymers such as PTFE, FEP or PFA, but is mechanically superior in rigidity (does not deform easily), and has very low gas permeability . Its dimensional stability makes it attractive for use as a component of a structural part where the high temperature and chemical resistance of fluoropolymers is required. PCTFE shows high compressive strength and low deformation under load. However, its relative cost is one of the major considerations in its selection, since it is quite expensive.

With a useful temperature range of -400°F to +400°F (-240 to +204°C) and an outgassing of 0.01% TML, 0.00% CVCM, 0.00% WVR when tested per ASTM E-595-90, PCTFE is the only thermoplastic fluoropolymer with these characteristics that is also suitable for aerospace applications.We have PCTFE available in sheet, rod, film, and tube for all applications.

Characteristics

  • Lower cold flow than other fluoropolymers 
  • High compressive strength 
  • Low gas permeability 
  • Zero moisture absorbtion

+ Numerical rating for flame spread is not intended to reflect hazards presented by this or any other material under actual fire conditions

PCTFE Machining

Nationwide Plastics is proud of our reputation as “the authority on plastics manufacturing and distribution,” and make sure that we understand both your application and your requirements so that we will provide you with high quality, tight tolerance products that meet your specifications. Offering a variety of PCTFE machining and fabrication services, we will work with you to select the most effective and efficient manufacturing process for your PCTFE machined part and manufacture the part to your exact specifications.

Our state-of-the-art facility is equipped with over 20 pieces of equipment to provide custom plastic turning, milling, routing and sawing services. We specialize in manufacturing large parts and our equipment is designed to process parts up to 148’ or longer, with tolerances to +/- .001, depending on the material. Call Nationwide Plastics today for all of your PCTFE machining needs.

Size
12" x 12"
24" x 24"
Thickness
1/16" x 1-1/4"
OD
1/16" to 3-1/4"
 
Call for Quote
Thickness
0.005" to 0.02"
 
Up to 60" Skived Sheets

PCTFE – Poly (chloro trifluoro ethylene) TYPICAL PROPERTIES

Property

Value

Units

Method

MECHANICAL PROPERTIES

Tensile Strength

4860 - 5710
34 - 39

psi
MPa

D 638

Elongation

100 - 250

%

D 638

Flexural Strength, 73°F

9570 - 10300
66 - 71

psi
MPa

 

Flex Modulus

200 – 243 x 103
1.4 – 1.7

psi
MPa

 

Impact Strength, Izod, 23 deg C

2.5 – 3.5

ft-lb/in

D 256

Compressive Stress at 1% deformation,

1570 – 1860
11 - 13

psi
MPa

D 695

Density

2.10 to 2.17

gm/cu.cm

 

THERMAL PROPERTIES

Coefficient of Linear Expansion

7 x 10-5

K-1

 

Melting Point

410 -414
210 - 212

deg F
deg C

 

Thermal Conductivity

1.45
0.84

Btu/hr-.ft-deg F
watt/meter-K

ASTM C 177

Specific Heat

0.22
0.92

Btu/lb/deg F
kJ/Kg/deg K

 

Heat Distortion Temperature, 66 lb/sq.in (0.455 MPa)

259
126

deg F
deg C

D 648

Processing Temperature

620
327

deg F
deg C

 

ELECTRICAL PROPERTIES

Dielectric Strength, short time, 0.004”

3000

Volt/mil

D 149

Arc-Resistance

360

sec

D 495

Volume Resistivity, @ 50% RH

2 x 1017

ohm-cm

D 257

Surface Resistivity, @ 100% RH

1 x 1015

Ohm sq-1

D 257

Dielectric Constant, 1 kHz

2.6

ε

D150-81

Dissipation Factor, @ 1 kHz

0.02

 

D150-81

OTHER PROPERTIES

Water Absorption

0.00

% increase in weight

D570-81

Flame Rating+

Non-flammable

 

D 635

Coefficient of friction

   

D 1894

Specific Gravity

2.10 to 2.17

 

D792

Moisture Permeability Constant

0.2

g/m, 24 hours

 

O2 Permeability

1.5 x 10-10

Cc, cm/sq.cm, sec, atm

 

N2 Permeability

0.18 x 10-10

Cc, cm/sq.cm, sec, atm

 

CO2 Permeability

2.9 x 10-10

Cc, cm/sq.cm, sec, atm

 

H2 Permeability

56.4 x 10-10

Cc, cm/sq.cm, sec, atm

 

NOTE: The information, recommendations and opinions contained herein is only a guide and is intended solely for your consideration, inquiry and verification. The suitability of any material under specific conditions of application is not guaranteed in any manner. Nationwide Plastics Inc.does not assume legal responsibility for the use of data presented here in any form, under any circumstances, any application, test or communication. Nothing contained herein is to be interpreted as a license or authorization to operate under or infringe any patent.