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POLYIMIDE MACHINED PARTS
M&P CAN MAKE CUSTOM POLYIMIDE MACHINED PARTS TO YOUR SPECIFICATIONS
MATERIAL DESCRIPTION
Vespel® is a high performance polyimide material which is formed from resin manufactured only by DuPont. Polyimide materials are characterized by a ring-shaped molecular structure containing Nitrogen.
Vespel® is one of the highest performing engineering plastics currently available.
Vespel® will not melt and can operate continuously from cryogenic temperatures to 550°F (288°C), with excursions to 900°F (482°C).
Vespel® parts consistently exhibit superior performance in a variety of applications requiring low wear and long life in severe environments.
NOTABLE MATERIAL FEATURES
• Excellent temperature resistance
• High wear resistance (especially SP-21)
• Dimensionally stable • Resistant to radiation
• Extremely low out gassing
• Relatively easy to machine
GRADES OF VESPEL
Vespel® (SP-1)
Vespel® SP-1 is the unfilled base resin grade. Vespel® SP-1 provides maximum physical strength, elongation, and toughness as well as the best electrical and thermal insulation values. Typical applications include spacers, high-temp fixtures, valve seats, balls, gaskets, insulators, and seals.
Vespel® (SP-21)
Vespel® SP-21 has 15% graphite by weight added to the base resin. Vespel® SP-21 has increased wear resistance and reduced friction in applications such as bearings, thrust washers, bushings, seal rings, slide blocks and other wear applications. Vespel® SP-21 has the highest mechanical properties of the graphite filled grades.
Vespel® (SP-22)
Vespel® SP-22 has 40% graphite by weight. Vespel® SP-22 has enhanced wear resistance, lower friction, improved dimensional stability (low coefficient of thermal expansion), and improved stability against oxidation. Typical uses are the same as those for Vespel® SP-21.
Vespel® (SP-211)
Vespel® SP-21 has 10% PTFE and 15% graphite by weight added to the base resin for the lowest coefficient of friction over a wide range of operating conditions. It also has excellent wear resistance up to 300°F (149°C). Typical applications include sliding bearings, linear bearings, and many wear and friction uses listed above.
Vespel® (SP-3)
Vespel® SP-3 is 15% molybdenum disulfide solid lubricant filled for wear and friction resistance in vacuum and other moisture-free environments where graphite actually becomes abrasive. Typical applications include seals, bushings, bearings, gears, and other wear surfaces in outer space, ultra-high vacuum and dry gas applications.
Some type of Vespel® parts we machine are:
| Balls | Nozzels | Semiconductor Parts |
| Back Up Rings | Pads | Sheaves |
| Blocks | Parts | Spacers |
| Bushings | Plugs | Supports |
| Cams | Rings | Valve Seats |
| Caps | Rods | Washers |
| Guides | Rollers | Wear Pads |
| Medical Parts | Seals |
CUSTOM MACHINED PARTS
Processing and machining of Torlon parts take place in a completely controlled environment. We maintain a complete record of our products. We build excellence into every part we machine. M&P's state of the art facilities are always open for you to visit.
For a quote on your custom Vespel® parts click on the e-mail link or give us a call at 1-800-888-2605
Vespel® is a registered trademark of E.I. du Pont de Nemours Company.
M&P Flange & Pipe Protection Inc.
9426 Katy Fwy Bldg #11
Houston, TX 77055
Phone: 800-888-2605 Fax: 713-463-6343 sales@m-p.com
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