Underwater Seismology Applications

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

1-800-444-3485

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Because of their high strength, resistance to corrosion, and insulating properties, plastics are ideal for use in Underwater Seismology. Plastics provide excellent protection for delicate instruments and do not interfere with electronic or mechanical signals as they are transmitted and received. And there's no chance of degradation due to saltwater, chemicals or oils.

The paragraphs below describe specific materials and their uses in this industry . . .

Acoustic & High Strength | High Temperature & High Performance

See also information for the following applications:
Oil Refinery & Transportation | Oil Drilling & Exploration

Acoustic & High Strength Materials

• TPX^® (PolyMethylPentene)            
  TPX ^® Polymethylpentene is the lightest of all known polymers with a density of 0.83 g/cm³. It has excellent electrical insulating and chemical resistance properties, and offers a very high melting point. Because of its low density, TPX ^® has high acoustic efficiency (a high damping factor due to large internal losses.) It also displays exceptionally low distortion and high power handling characteristics.
  
  
• Rexolite^® Cross-Linked Polystyrene            
  Rexolite^® is a unique cross-linked polystyrene, microwave plastic. This material's most notable properties are it's unusually stable electrical properties into the Giga-hertz frequency range. It is also optically clear (approximately the same as Acrylic), dimensionally stable, and excellent sound transmission characteristics. It is often specified for use in microwave, radar, and other high-frequency applications.
  
  
• Ultem^® PEI (PolyEtherImide)            
  Ultem^® has good dielectric properties and low thermal expansion, and is considerably less expensive than some other polymers. Its 30% glass-filled version, Ultem^® 2300, has a excellent dimensional stability and a wide operating temperature range. Ultem^® 2300 is an excellent choice for for insulators, spacers, connectors, and structural parts.
  
  
• Ryton^® PPS (PolyPhenylene Sulfide)            
  Ryton^® PPS offers exceptional chemical resistance combined with heat resistance to 425°F. It does not degrade with exposure to water or steam, nor to hydrocarbon or other organic compounds. Glass-fiber filled Ryton^® offers exceptional dimensional stability, stiffness, and compressive strength. Ryton^® PPS materials are suitable enclosures and structural components.
  
  

• Celazole^® PBI (PolyBenzImidazole)            
  Celazole^® offers excellent dimensional stability and strength at the highest sustained temperatures of any plastics -- up to 750°F, with excursions possible up to 1000°F.
  
  
• DuPont ™ Vespel^® (Polyimide)            
  DuPont ™ Vespel^® polyimide material provides a unique combination of strength, toughness, wear resistance, chemical stability at temperatures up to 550°F. It can be used for insulators, spacers, and other electrical components that must stand up to extreme temperatures.
  
  
• DuPont ™ Kapton^® (Polyimide Film)            
  DuPont ™ Kapton^® polyimide film is a high performance polymer which combines excellent physical, electrical, and mechanical properties at temperatures as low as -452°F (-269°C) and as high as +752°F (+400°C). It is typically orange and transparent in appearance. DuPont ™ Kapton^® offers excellent dimensional stability combined with excellent chemical resistance -- there are no known solvents. It is typically used for wire and cable tapes, formed coil insulation, flexible printed circuit board substrates, and magnet wire, transformer and capacitor insulation.
  
  
• Duratron^® XP (Polyamide)            
  Duratron^® XP offers dimensional stability, chemical resistance, and retains its strength at temperatures of up to 550°F. Duratron^® XP is a slightly lower cost replacement for Vespel^® polyimide.
  
  
• Torlon^® PAI (PolyAmide-Imide)            
  Torlon^® has high dielectric properties and low thermal expansion, and is much less expensive than some advanced polymers. It is also available in glass and carbon-filled versions to enhance its already excellent characteristics. Because of its wide temperature range and dimensional stability, Torlon^® is ideal for connector bodies, insulators, spacers and other high-temperature electrical parts.
  
  
• Ultem^® PEI (PolyEtherImide)            
  Ultem^® has good dielectric properties and low thermal expansion, and is considerably less expensive than some other polymers. Its 30% glass-filled version, Ultem^® 2300, has a excellent dimensional stability and a wide operating temperature range. Ultem^® 2300 is an excellent choice for for insulators, spacers, connectors, and structural parts.
  
  
• PEEK (PolyEtherEtherKetone)            
  PEEK offers exceptional chemical resistance combined with heat resistance to 480°F. It does not degrade with exposure to water or steam, and is flame- and radiation-resistant. Glass and carbon-fiber reinforced grades are also available for improved dimensional stability, stiffness, compressive strength, and heat dissipation. Because of these properties, PEEK can withstand the chemical and mechanical stresses present during downhole operations. Connector bodies, insulators and spacers may be manufactured from PEEK.
  
  
• Ryton^® PPS (PolyPhenylene Sulfide)            
  Bearing grade Ryton^® PPS offers exceptional chemical resistance combined with heat resistance to 425°F. It does not degrade with exposure to water or steam, nor to hydrocarbon or other organic compounds. Many different bearing grades of Ryton^® are available which are filled with solid lubricants for lower friction and higher wear resistance. Glass and carbon-fiber reinforced grades are also available for improved dimensional stability, stiffness, compressive strength, and heat dissipation. Ryton^® PPS materials are suitable for bearing, thrust, and wear surfaces and structural components.
  
  
• G-10 and G-11 Glass-Epoxy Industrial Laminates            
  NEMA G-10 and G-11 glass-epoxy laminates are specified for their extremely high strength and high dimensional stability over temperature. G-10 is slightly stronger while G-11 is a better insulator and can take higher temperatures. These materials they are frequently used for insulators, spacers and structural parts which must stand vibration, shock, and high temperatures.
  
  

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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: bpi@boedeker.com

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