| Vertec
1521 is a filled modified
PTFE (polytetrafluorethylene) material. It exhibits
good sealability, low coefficient of friction and
very low wear rate under dry running conditions. It
is a little harder and a bit more abrasive than other
similar use materials, 1011
and 1110, however it wears
better and can handle higher speed applications. It
is an ideal sealing material for use against metal
surfaces in dynamic applications. It has performed
especially well in air compressor applications such
as piston cups.
Physical
Properties |
ASTM Method |
Typical Values |
|
|
| Specific
Gravity |
D792 |
1.89 gr/cm
3 |
|
|
| Water
Absorbtion (24 hrs. @73.4° F) |
D570 |
% |
|
|
| Color |
N/A |
Black |
|
|
|
|
Mechanical
Properties |
|
|
|
|
| Tensile
Strength |
D1708 |
2500 psi |
|
|
| Tensile
Elongation |
D1708 |
210% |
|
|
| Flexural
Strength |
D790 |
2400 psi |
|
|
| Flexural
Modulus |
D790 |
150,000 psi |
|
|
| Compressive
Strength |
D695 |
1500 psi |
|
|
| Compressive
Modulus |
D695 |
120,000 psi |
|
|
| Impact
Strength (Izod, notched) |
D256 |
ft-lb/in |
|
|
| Hardness |
Shore D |
63 |
|
|
|
|
|
|
Tribological
Properties |
|
|
|
|
| Coefficient
of Friction |
|
|
|
|
| Static |
D3702 |
.14 |
|
|
| Dynamic |
D3702 |
.09 |
|
|
| Wear
Rate (PV: 20,000 psi-fpm) |
D3702 |
µin/min |
|
|
|
|
|
|
Thermal
Properties |
|
|
|
|
| Coefficient
of Linear Thermal Expansion (78-400°
F) |
D696 |
50 10 -6/°
F |
|
|
| Heat
Deflection Temperature (@264 psi) |
D648 |
° F |
|
|
| Glass
Transition Temperature (Tg) |
D3418 |
266 |
|
|
| Continuous
Service Temperature (Max @ no load) |
|
500°
F |
|
|
| Melting
Point |
|
648°
F |
|
|
|
|
|
|
Electrical
Properties |
|
|
|
|
| Volume
Resistivity |
D257 |
10 16 ohm-cm |
|
|
| Dielectric
Strength |
D149 |
KV/mm |
|
|
| Delectric
Constant |
D150 |
50Hz, 200°
C |
|
|
|
|
|
|
| Note:
Property values should
be interpreted as typical rather than minimum
value. All technical information and recommendations
are presented in good faith, and based upon
labratory and real-world tests believe to be
reliable and practical. However, Vertec Polymers,
Inc. cannot guarantee the accuracy or completenss
of this information, and it is the customers
responsibility to determine product suitability
to any given application.
Revision
Date 10/2005 |
|
Call 866.283.7832
