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Plavis® Polyimide Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@plavis.com

1-800-444-3485

Boedeker.com Home Page | Applications | Materials Guide | Contact Us!

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GENERAL PROPERTIES

click to resize photo Plavis ® polyimide has been developed by Daelim H&L (Korea) to offer a newer, lower-cost alternative to other available polyimide materials. Boedeker Plastics is the exclusive North American source for Plavis polyimide in machinable plate, rod and tube forms.

Plavis ® polyimide shapes provide superior high-temperature resistance, excellent wear and friction properties, good electrical and physical properties, and chemical inertness.

Plavis polyimide delivers outstanding resistance to creep and lubricated or unlubricated performance, ultra-low outgassing, excellent mechanical strength and impact resistance. PLAVIS polyimide is applied in the industries of aircraft and aerospace, automotive, electrical and electronics, chemical and mechanical engineering, semiconductors, etc.

NOTE: Plavis may be compared favorably to Vespel ® polyimide produced only by DuPont.

PLAVIS ® FEATURES

• High-temperature performance. • Wear-Resistance • Chemical Resistance • Easy to Machine • Good Electrical Properties - Insulative • Creep Resistant • Radiation Resistance • Ultra Low Outgassing • Isostatically molded for uniform multidirectional performance.

PLAVIS ® APPLICATIONS

• Rotary seal rings • Thrust washers and discs • Bushings • Flanged bearings • Plungers • Printer wire guides • Spline couplings • Wear strips • Valve seats • Thermal and electrical insulators • Wafer clamping, polishing and grinding rings • Wafer guides & carriers • Vacuum pads • Die pickup collets

PLAVIS ® SIZE AVAILABILITY

Plavis ® polyimide is available in isotactically molded shapes as follows:

•  Rods ... up to 2.5" (63mm) diameter by up to 17.7" (450mm) long
•  Plates ... up to 2" thick x 12" x 12" (50mm thick x 304mm x 304mm)
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PLAVIS ® GRADES

Plavis ® N     (comparable to Vespel ® SP-1)
Plavis ® N is the unfilled base resin grade. Plavis N 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.

Plavis ® G15     (comparable to Vespel ® SP-21)
Plavis ® G15 has 15% graphite by weight added to the base resin for increased wear resistance and reduced friction in applications such as bearings, thrust washers, bushings, seal rings, slide blocks and other wear applications. G15 has the highest mechanical properties of the graphite filled grades.

Plavis ® G40     (comparable to Vespel ® SP-22)
Plavis ® G40 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 ® MS     (comparable to Vespel ® SP-3)
Plavis ® MS is 15% moly-filled (molybdenum disulfide solid lubricant) 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 or dry gas applications.

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TYPICAL PROPERTIES of PLAVIS ®

ASTM or UL test Property N G15 G40 MS
- Composition / Filler Material Unfilled 15% Graphite 40% Graphite 15% Moly
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.050
1.39
0.052
1.44
0.059
1.62
0.056
1.55
D570 Water Absorption (%) @ 50% RH 0.95 0.90 0.80 0.90
MECHANICAL
D1708 Tensile Strength, Ultimate @ 73°F (psi)
@ 500°F (psi)
13,300
7,300
11,400
6,800
10,600
5,900
11,400
-
D638 Tensile Modulus (psi) - - - -
D1708 Tensile Elongation, Ultimate @ 73°F (%)
@ 500°F (%)
12.8
8.9
11.2
7.4
9.5
5.7
6.3
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D790 Flexural Strength, Ultimate @ 73°F (psi)
@ 500°F (psi)
18,200
8,500
12,500
7,800
12,400
7,000
12,400
7,400
D790 Flexural Modulus @ 73°F (psi)
@ 500°F (psi)
443,000
247,000
397,000
334,000
683,000
400,000
426,000
341,000
D695 Compressive Strength, 1% strain @ 73°F (psi)
10% strain @ 73°F (psi)
3,300
24,000
3,400
15,400
4,100
14,300
4,300
15,000
D695 Compressive Modulus (psi) 336,000 410,000 411,000 355,000
D785 Hardness, Rockwell M75-85 M68-78 M66-70 M70-75
D256 IZOD Notched Impact (ft-lb/in) 0.94 0.84 0.67 -
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
3.1 1.9 1.4 2.2
D648 Heat Deflection Temp (°F / °C)
at 264 psi
680 / 360 - - -
- Max Continuous Operating Temp (°F / °C) 465 / 240 465 / 240 465 / 240 480 / 250
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

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UL94 Flammability Rating V0 - - -
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, 1/8" thick - - - -
D150 Dielectric Constant at 1 MHz 2.91 - - -
D150 Dissipation Factor at 1 MHz 0.0036 - - -
D257 Volume Resistivity (ohm-m) 1013 - 1014 1012 - 1013 103 - 104 -

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.

PLAVIS is a registered trademark of Daelim H&L (Korea).
VESPEL is a registered trademark of DuPont.

http://www.plavis.com

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@plavis.com

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