Kemlox® High Temperature Plastics
Aromatic Polyether Ketones
Kemlon provides a wide variety of molded connectors (Kemlon cat links duoseel, KTK, Underwater, sensors) and related instruments for downhole, geothermal, aerospace, underwater, and other demanding applications. These plastics find widespread acceptance in environments with temperatures to 500° F and pressures to 30,000 psi.
| Kemlox® APK 1000 | Kemlox® APK 1000G30 | Kemlox® APK 5000 | Kemlox® APK 6000 | Kemlox® APK 7000 | ||
| Unfilled PEEK | 30 % glass filled PEEK | ÜberPEK | ÜberPEEK® | |||
| Units | ||||||
| Density, Crystalline | gm / cu. cm | 1.32 | 1.5 | 1.32 | ~1.32 | ~1.28 |
| Density, Amorphous | gm / cu. cm | 1.26 | ~ | 1.27 | ~1.27 | ~ |
| Typical Crystallinity | % | 35 | 30~35 | 35 | 35 | 32 |
| Water Absorption | %~ 24hrs @ 73 °F | 0.5 | 0.11 | 0.5 | ~.50 | ~.09 |
| Water Absorption | %~Equil @ 73 °F | 0.5 | ~ | ~ | ~ | ~ |
| Melting Point | °F | 644 | 644 | 705 | 723 | 725 |
| Glass Transition Temp | °F | 289 | 289 | 315 | 327 | 338 |
| Heat Distortion Temp | °F | 306 | ~ | 329 | 347 | 347 |
| Tensile Strength | psi @ 73 °F | 14065 | 22600 | 15950 | 16679 | 14,000 |
| Tensile Strength | psi @ 302 °F | ~ | ~ | 6962 | ~ | ~ |
| Tensile Strength | psi @ 347 °F | ~ | ~ | ~ | ~ | 4,430 |
| Tensile Strength | psi @ 482 °F | 1740 | 4930 | 2466 | ~ | ~ |
| Dielectric Strength | Volts / mil | 480 | 444 | 440 | ~430 | 590 |
Chemical Resistance of Kemlox® APK Thermoplastics
These plastic materials are all aromatic polyether ketones and exhibit similar and excellent chemical resistance to many materials. The following descriptions provide general guidelines to chemical resistance. Please inquire for materials not specifically listed below.
Resistance is outstanding to alcohols, aldehydes, ketones, bases such as ammonia, ammonium hydroxide, potassium hydroxide and sodium hydroxide. Furthermore, these plastics are unaffected by esters, ethers and a wide variety of halogenated organics such as freon, trichloroethylene and methylene chloride.
Most hydrocarbons show no attack, including benzene, crude oil, diesel oil, gasoline, kerosene, motor oil, vegetable oil, toluene, and transformer oil. Many inorganic reagents show little attack. Included in this group is bleach, calcium hypochlorite, copper cyanide, hydrogen sulfide, lime, mercury, nickel chloride, ozone, potassium nitrate, sodium chloride, sulfur, steam, sea water, and sulphur dioxide. However, a few inorganic materials should be avoided including bromine, fluorine, chlorine, and some salts of halogens.
Acid resistance is outstanding with little or no attack by such chemicals as acetic acid, acrylic acid, boric acid, chromic acid, oxalic acid, hydrochloric acid, nitric acid, and phosphoric acid. The Kemlox® APK plastics are attacked by aqua regia, concentrated hydrofluoric acid (70%), concentrated nitric acid (50%), and concentrated sulfuric acid (40%).