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DuPont Vespel SP-1 unfilled offers superior wear and insulation properties with operating temperatures from cryogenic to 260°C (500°F). Vespel® SP-1 has low electrical conductivity and the highest elongation and purity of the SP family. Available as stock shapes. For Vespel® SP-1 chemical resistance view our chart.
Semiconductor manufacturers often find components fabricated from Vespel® SP-1 shapes useful in production processes.
The inherent resistance of DuPont™ Vespel® to stress relaxation allows it to maintain much of its apparent modulus over extended periods of time, resulting in long-term sealing performance.
DuPont Vespel SP-1 is available as isostatically molded billet and unidirectionally pressed slab specified as Type IM and Type IP respectively per ASTM D6456-10 / MIL-R-46198. Vespel® SP-1 is specified as Class 1 per AMS 3644G.
DUPONT VESPEL SP-1 IS WIDELY USED FOR:
- Insulators
- Valve seats
- Balls
- Gaskets
- Poppets
- Wafer clamping rings
- In-chamber semi-conductor parts
PERFORMANCE CHARACTERISTICS:
- Operating temps from cryogenic to 500°F (260°C)
- Ultra-high purity
- Minimal electrical and thermal conductivity
- Maximum strength and elongation
- Low outgassing
- Improved tech uniformity
- Excellent wear for longer life
TYPICAL PROPERTIES OF DUPONT™ VESPEL® SP-1 POLYIMIDE
| ASTM
Method |
Units | SP-1
Unfilled |
|
| Mechanical | |||
| Tensile strength
23°C (73°F) |
D1708 / D638 | MPa (kpsi) | 86.2
(12.5) |
| Tensile strength
260°C (500°F) |
D1708 / D638 | MPa (kpsi) | 41.4
(6.0) |
| Elongation at break
23°C (73°F) |
D1708 / D638 | % | 7.5 |
| Elongation at break
260°C (500°F) |
D1708 / D638 | % | 6.0 |
| Flexural modulus
23°C (73°F) |
D790 | MPa (kpsi) | 3,100
(450) |
| Flexural modulus
260°C (500°F) |
D790 | MPa (kpsi) | 1,720
(250) |
| Compressive stress at
10% strain, 23°C (73°F) |
D695 | MPa (kpsi) | 133
(19.3) |
| Deformation under
13.8 MPa (2,000 psi) load |
D621 | % | 0.14 |
| Friction | |||
| Coefficient of friction at
PV = .875 MPa m/s (25,000 psi-ft/min)* |
0.29 | ||
| Coefficient of friction at
PV = 3.5 MPa m/s (25,000 psi-ft/min)* |
|||
| Static coefficient
of friction in air* |
0.35 | ||
| PV limit (unlubricated)** | MPa-m/s
(kpsi ft/min) |
||
| Other Properties | |||
| Coefficient of thermal
expansion 23–300°C (73–572°F) |
E831 | µm/m/K
(10-6 in/in-°F) |
54 (30) |
| Hardness | D785 | Rockwell E | 45–60 |
| Water absorption
24 hr at 23°C (73°F) |
D570 | % | 0.24 |
Warranty for DuPont Vespel SP-1 products
• Only applies to Dupont products distributed genuine in Vietnam.
• All DuPont Vespel SP-1 products are warranted if the machine fails due to manufacturer fault.
• For warranty and product maintenance, please contact Achilles, customer service phone number: Ms. Đức 098 469 4884
• Achilles is the genuine supplier of products related to DuPont Vespel SP-1
• For retail/whole sale pricing, bulk ordering and product information advice please contact Ms. Đức 098 469 4884 via info@achilles.com.vn or the website https://achilles.com/.
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