General Info
Plavis ® G40 Polyimide has 40% graphite by weight for enhanced wear resistance, lower friction, improved dimensional stability (low coefficient of thermal expansion), and stability against oxidation. Typical uses are the same as those for G15.
PLAVIS does not have a melting point and has a continuous operating temperature of 300 C / 572 F. At 370 C / 698 F, a 50% reduction in tensile strength will occur at 200 hours for PLAVIS-N (unfilled), 220 hours for PLAVIS-G15(15% graphite filled), and 360 hours for PLAVIS-G40 (40% graphite filled).
In a vacuum or oxygen void environment, the heat resistance of PLAVIS is even higher. Since PLAVIS has no melting point unlike other polyimides or thermoplastics such as PEEK, PAI, PEI; the strength vs. temperature of PLAVIS is very linear and predictable. For applications where part dimensions and tolerances are critical over a range of temperature, PLAVIS is an excellent.
Click for more information on the complete line of Plavis Polyimides
NOTE: Plavis may be compared favorably to Vespel ® polyimide produced by DuPont.
Key Properties
- High-temperature Performance
- Continuous Use 300 C / 572 F
- Excursions up to 370 C / 698 F (50% reduction in tensile strength after 200 hours for PLAVIS-N)
- Wear-Resistance
- Chemical Resistance
- Easy to Machine
- Creep Resistant
- Radiation Resistance
- Isostatically molded for uniform multidirectional performance.
Limitations
- PLAVIS should not be used in strong alkali conditions such as a PH over 10
- The chemical structure of PLAVIS is not resistant to bases
- Chemical Resistance to Some Strong Acids and Bases
- Hydrolyzes in Presence of Steam
Applications
- Thrust washers and discs
- Bushings
- Flanged bearings
Resin Trade Names
Manufacturer Trade Names
Boedeker Plastics, Inc. stocks & supplies plastic sheet, rod, tube, film and custom profiles and machine parts from these shapes that are produced from plastic resin. In many cases the manufacturer of the shape has their own product trade name. If your specification calls for a specific resin grade or manufacturer trade name, we can supply a shape made from that resin to meet your specification or suggest an equal. If you require a specific resin or brand it must be specified at the time of order.
Available Sizes
Plavis polyimide is available in molded shapes as follows:
Plates ... up to 2" thick x 12" x 12" (50mm thick x 304 mm x 304 mm)
Rods ... up to 2" (50.8 mm) diameter by up to 19.7" (500.38 mm) long
Boedeker offers cut to size service on all in-stock items and same day shipping.
If you do not see the size your looking for contact us for alternative options.