|
PTFE raschig ring can be made by virgin PTFE (100% pure PTFE) or
PTFE with graphite, or with fiber glass etc.
TEFLON
| CODE # |
CONSISTS OF |
DEFINITION OF FILL |
TEFLON 101
TEFLON 102
TEFLON 103
TEFLON 104
TEFLON 105
TEFLON 106 |
5% Glass Fiber
10% Glass Fiber
15% Glass Fiber
20% Glass Fiber
25% Glass Fiber
30% Glass Fiber |
Milled glass fibers have the least effect on chemical and electrical properties and add greatly to the mechanical properties of unfilled PTFE. Addition of glass improves compressive properties by as much as 40% and improves wear resistance greatly. These compounds resist acids and oxidation but can be attacked by alkali. |
TEFLON 110
TEFLON 111
TEFLON 112
TEFLON 113
TEFLON 114 |
5% Graphite
10% Graphite
15% Graphite
20% Graphite
25% Graphite |
Graphite has good chemical resistance to corrosive environments and exhibits good initial wear and rubbing/sliding characteristics in dry and water applications. Commonly blended with carbon and PTFE. |
TEFLON 115
TEFLON 116
TEFLON 118 |
25% Bronze
40% Bronze
60% Bronze |
This filler has better wear, creep resistance, and higher thermal conductivity than glass fiber with PTFE. The compound is easily machined, but has poor chemical resistance in the presence of acids and alkali. Useful in applications which undergo high mechanical loads or high-speed rubbing contacts where the bronze filler supplies the strength and conductivity to carry away excess, unwanted heat. |
| TEFLON 127 |
5% Molybdenum Disulfide |
This filler is used frequently in combination with others to increase surface hardness, stiffness, and to reduce the starting coefficient of friction and steady-state wear. Its effect on electrical and chemical properties is negligible. |
TEFLON 130
TEFLON 131
TEFLON 132
TEFLON 133
TEFLON 134 |
5% Carbon
10% Carbon
15% Carbon
20% Carbon
25% Carbon |
Carbon has good chemical resistance to corrosive environments. It exhibits good initial wear and rubbing or sliding contact characteristics, both dry and water applications. It is frequently used in piston rings to reduce cylinder wall wear by entrapping abrasive foreign particles in their relatively soft surfaces. |
TEFLON 136
TEFLON 137
TEFLON 138 |
10% Carbon-Graphite
20% Carbon-Graphite
25% Carbon Graphite |
These fillers are used both separately and together in PTFE compounds. |
TEFLON 140
TEFLON 141
TEFLON 142 |
5% Calcium Fluoride
10% Calcium Fluoride
15% Calcium Fluoride |
ALTERNATIVE TO GLASS FILL. |
TEFLON 151
TEFLON 152
TEFLON 153
TEFLON 155 |
15% Glass Fiber, 5% Moly
20% Glass Fiber, 5% Moly, 5% Carbon-Graphite
23% Glass Fiber, 2% Moly
25% Glass Fiber, 5% Moly |
SEE ABOVE FOR INDIVIDUAL DEFINITIONS. |
TEFLON 157
TEFLON 158
TEFLON 159 |
10% Glass Fiber, 10% Graphite
5% Glass Fiber, 5% Graphite
20% Glass Fiber, 5% Graphite |
SEE ABOVE FOR INDIVIDUAL DEFINITIONS. |
TEFLON 161
TEFLON 162 |
10% Glass Fiber, 5% Carbon
5% Glass Fiber, 10% Carbon |
SEE ABOVE FOR INDIVIDUAL DEFINITIONS. |
TEFLON 170
TEFLON 171
TEFLON 172
TEFLON 173 |
40% Bronze, 5% Moly
40% Bronze, 10% Moly
55% Bronze, 5% Moly
65% Bronze, 5% Moly |
SEE ABOVE FOR INDIVIDUAL DEFINITIONS. |
| Upon Request, physical testing with test reports available. |
(FILLED PTFE) COMPOSITIONS & FILL DESCRIPTIONS
| PTFE & TEFLON TYPICAL PHYSICAL PROPERTIES OF VIRGIN PTFE PRODUCTS |
| PTFE Material |
Virgin |
Virgin
"Super"
PTFE |
Reprocessed |
Virgin PTFE blended with: |
| Filler |
None |
None |
None |
Glass Fiber |
Bronze |
Graphite |
Carbon |
Glass,
MoS2 |
| Filler Content By Weight |
0% |
0% |
0% |
25% |
40% |
10% |
10% |
23%, 2% |
| PROPERTIES |
| Specific Gravity |
2.16 |
2.16 |
2.16 |
2.22 |
3.30 |
2.13 |
2.13 |
2.25 |
| Tensile Strength @ Break (PSI) |
3,000 |
4,500 |
1,500 |
2,500 |
2,300 |
2,500 |
2,800 |
2,500 |
| Elongation @ Break |
200% |
450% |
75% |
150% |
50% |
150% |
175% |
100% |
| Shore D Hardness |
51 |
54 |
56 |
57 |
65 |
57 |
62 |
57 |
| Dielectric (kV/mil) |
3.5 |
3.7 |
.8 |
- |
- |
- |
- |
- |
| Upon Request, physical testing with test reports available. |
 COMMON SPECIFICATIONS FOR Teflon AND PTFE PRODUCTS |
| Specifications
*AMS 3651
AMS 3652
AMS 3656
AMS 3658
AMS 3659
AMS 3660
AMS 3661
AMS 3662
AMS 3667
AMS 3668
AMS 3669
AMS 2491
*MIL-P-22241
*MIL-P-19468
ASTM D1710
ASTM D3293
ASTM D3294
ASTM D3308
|
Type Of Specification for PTFE and Teflon ?/B>
PTFE RODS, TUBES, SHEETS, SHAPES (See AMS 3652 thru AMS 3669)
PTFE FILM
PTFE EXTRUSIONS
PTFE EXTRUSIONS
PTFE EXTRUSIONS
PTFE MOLDINGS
PTFE FILM
PTFE FILM
PTFE SHEET, MOLDED
PTFE MOLDINGS
PTFE SHEET, MOLDED
SURFACE TREATMENT OF PTFE
PTFE SHEET & FILM (See ASTM D3293 & ASTM D3308)
PTFE RODS, MOLDED & EXTRUDED (See ASTM-D1710)
PTFE ROD
PTFE MOLDED SHEET
PTFE MOLDED SHEET OR SHAPES
PTFE SKIVED TAPE
|
| * Note: These specifications have been deleted. See replacement specifications for current information. |
| Upon Request, physical testing with test reports available. |
|
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