8th February 2022 | Dupont Vespel Polyimide®, Automotive, Oil & Gas, Power & Renewables, Construction.
Dupont™ Vespel® S line polyimide materials from HONY Plastic can offer exceptional performance at elevated temperatures and solve application issues involving demanding conditions of wear, pressure, requirements for self-lubrication and low friction, chemical attack and temperature.
The Dupont S line range of polyimide materials exhibits a glass transition temperature of over 400 degrees C. A continuous service temperature of 300 degrees C, and operating temperature in certain applications of 500 degrees C.
Dupont S line range of polyimide materials from HONY Plastic can offer an alternative wear-resistant material solution to
PEEK, carbon and graphite and metallic bearing surfaces, with exceptionally high PV (dry pressure velocity limits to 12 MPA .m/s and even higher with lubrication)
Vespel S line materials exhibit exceptional chemical resistance properties.
Vespel ST resists chemical attacks from acids and bases. Organic solvents have little effect, as do chlorinated and fluorinated solvents. Hydrocarbon solvents such as Toluene and kerosene have virtually no effect.
Dupont Vespel S line polyimide materials from HONY Plastic can also be extensively used in applications involving Jet Engine oils, Silicone fluids, refined mineral oils, hydraulic fluids, and oil additives.
HONY Plastic can offer Dupont Vespel S line materials for use in lubricated and unlubricated bearing applications.
Vespel polyimide also offers an excellent material option for use as a seal ring. From cryogenic temperatures to 300 degrees C, and intermittent use at 500 degrees C, with excellent load bearing properties at a temperature beyond other plastic materials. With low wear, low friction, and good structural properties, polyimide offers a viable alternative to cast iron.
SP-1 Need a material with superior wear and insulation properties? Semiconductor manufacturers often find our SP-1 products useful in their production processes. And, with operating temperatures from cryogenic to 300°C, great plasma resistance, plus a UL rating for minimal electrical and thermal conductivity, it isn’t hard to see why.
SP- 21 If insulation is less important than low-friction properties, then you’re looking for graphite-enhanced SP-21. Automotive engineers love to use SP-21 for parts like thrust washers, bearings and
seals—because the low-friction properties mean they work with or without lubrication.
SP- 211 Need a lower coefficient of friction than SP-21? Not as concerned about thermal and wear resistance? SP-211 could be your solution. With
teflon®
PTFE as an additive, the coefficient of friction is further reduced, even without lubrication.
SP-214 If you need a material that can supply low-frictional properties and the benefits of even a longer life than our SP-21, look to SP-214. It's an S-line solution designed to withstand some of your harshest conditions, in non-lubricated environments.
SP-22 Designing with tight tolerances? SP-22 is the answer. When you’ve no room for error, SP-22’s minimal thermal expansion and dimensional stability give you the freedom to create exactly what you’ve imagined.
SP- 221 Created for highly specialized applications—against soft metals in “non-lube” conditions. Its excellent coefficient of friction and good creep resistance mean that not only will your SP-221 part have excellent wear, but so will the soft metal parts that
come in contact with it.
SP-224 Need a bearing material that offers all the benefits of SP-22, plus the advantage of stable frictional properties and longer life? SP-224 is your answer. This patented material goes the extra mile — providing additional load-carrying capability.
SP-3 Of course, working in vacuum and dry environments has its own challenges. Aerospace engineers have to worry about extra difficulties like outgassing. But SP-3 has proven high performance in aerospace applications, largely due to its ultra-low outgassing.
SMR - 0454 & SMR - 0747 High modulus, low elongation, high compressive strengths and low creep—these products provide them all. Graphite-filled for low friction, SMR-0454 and SMR-0747 offer the same thermal resistance as the SP products,with less deflection under load. The addition of carbon fibers in SMR-0454 gives extra benefits: a steel-like coefficient of thermal expansion and better thermal conductivity.
ST- 2010 & ST-2030 Want a material that wears like SP-21, but with improved toughness and better thermal oxidative stability? Consider ST-2010 or ST-2030. These products even include better resistance to solvents, acids and bases.
SCP-5000 & SCP-50094 Materials designed for those demanding applications that require even more toughness, thermal stability and chemical resistance than ST-2010. SCP-50094 has been put to the test in ultra-high-stress environments like aircraft engines.
So, it’s ready for just about any design challenge. But for better plasma resistance, dimensional stability and chemical resistance than SP-1, check out SCP-5000.
SM-30084 As any engineer knows, sometimes strength lies in flexibility. Allow us to introduce SM-30084. It was originally developed to provide higher elongation for engine piston rings and valve spring washers. But, because of its outstanding strength,SM-30084 is being tested more and more, showing truly incredible versatility.
SMP-40025
S Line’s “best in class” regarding thermal oxidation resistance and thermal stability. (It’s even better than SCP-50094!) As such, SMP-40025 is ideal for use in jet engines—particularly high-vibration applications. Its high modulus and low elon gation provide dimensional stability at temperatures and loads that make other polymers wilt.
SF-0920 Other materials “can’t touch” SF-0920’s superior thermal and electrical insulating properties, not to mention resilient cushioning. That’s what sets SF-0920 apart from the rest of the Vespel®Parts and Shapes S line. This unique polyimide foam has high durability and thermal resistance that make it ideal for use in those “can’t-touch” hot-material-handling applications. Plus, it’s lightweight and safe—won’t burn, offgas, or release toxic fumes.
