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Sales Manager:Adele Shen
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Fax: 0086-575-82037239
Mobile: 0086-18106876135
E-mail: sj@sealing-china.com
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Description
There are two kinds of PTFE rods to offer. One is manufactured by Paste extruding method in the diameter from 4 to 9mm and the other Is made by ram extruding method is the diameter from 10to 50mm; rods Over the diameter 50mm are manufactured by molding. PTFE is the most chemical-resistant of all known plastics. It does not age.
PTFE has a wide range of practicable temperature from 180%°C - +260°C and a wax-like surface to which anything hardly sticks.
PTFE has the lowest coefficient of friction of all known solid materials. It has the best electrical properties of all plastics.
Application
Electrical insulation ,seal, antisticking materials
Technical datas of pure PTFE Rod
|
Item |
ASTM |
Data |
Unit |
|
Mechanical Properties |
|||
|
Density |
D792 |
2.1~ 2.2 |
g/m3 |
|
Tensile strength |
D638 |
≥25 about 25 ~ 45 |
MPa |
|
Elongation at break |
D638 |
≥150 about 200~ 350 |
% |
|
Compression strength |
D695 |
24 |
MPa |
|
Shore D Hardness |
D636 |
50-60 |
- |
|
Friction coefficient |
on steel |
0.01 |
- |
|
Thermal Properties |
|||
|
Working Temp |
|
-180 ~ +260 |
°C |
|
Melting point |
|
330 |
°C |
|
Produce Max. Temp |
|
390 |
°C |
|
Fire Resistance |
UL94 |
V-0 |
|
|
Brittle point temperature |
|
-268 |
°C |
|
Electrical properties |
|||
|
Dielectric strength |
D149 |
>1400 |
kV/mm |
|
Volume resistivity |
D257 |
>1018 |
Ω·cm |
|
Surface Resistivity |
D257 |
>1016 |
Ω |
|
Dielectric constant |
D150 |
2.1 |
|
|
Conventional properties |
|||
|
Chemical solvent resistance |
Excellent |
|
|
|
Water absorption (25℃ ) |
D570 |
0.01 |
24h/% |
|
limit oxygen index |
D2963 |
>95 |
|
Filled material:
Filled PTFE products has more outstanding performance by adding filler such as carbon, graphite, bronze, glass fiber, carbon fiber, MOS2, PEEK, PI, POB BaSO4, SiO2, glass bead, polyamide.
The General Specification of PTFE Rod
|
OD(mm) |
Length(mm) |
Length(mm) |
|
1, 2, 3, 4 |
continuous length |
|
|
5, 6, 8, 10, 12, 15, 16, 18, 20, 22, 25, 28, 30, 32, 35, 40 |
1000 |
2000 |
|
45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100 |
1000 |
2000 |
|
110, 120, 130, 140, 150, 160, 170, 180, 190, 200 |
1000 |
2000 |
|
210, 220, 230, 240, 250, 260, 270, 280, 300 |
300 |
|
|
310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 440, 450, 460, 470, 480, 490, 500 |
100 |
|
Custom specifications of PFFE Rod
|
Item |
Dia.(mm) |
Length(mm) |
|
Paste Extruded Rod |
1~4 |
According to customer's request |
|
Plug Extruded Rod |
4~200 |
500~2000 |
|
Molded Rod |
5~500 |
10~300 |
Feature
1. Superior endurance in corrosion
2. Non-flammable, limited oxygen index is under 90
3. Low friction coefficient, Low permeability , Good gas barrier property
4. Non-viscous, Self-lubricating
5. Superior endurance in high & low temperature