DuPont™ Vespel®

Vespel SP1

First in the Vespel family of products - highly durable polyimides that deliver exceptional wear resistance, insulation, and a low coefficient of friction. But, since we know you like to push a little harder, so did we. Within the S Line, Vespel Parts and Shapes include many products with differing sets of attributes. So, you get exactly what your design needs. technical specifications

Superior wear properties, best electrical and thermal insulation for:

• Insulators
• Valve seats
• Balls
• Gaskets
• Poppets
• Wafer clamping
• Clamping rings
• In-chamber semiconductor parts

Benefits

• Unfilled resin
• Operating temps from cryogenic to 300°C (570°F)
• Ultra high purity
• Minimal electrical and thermal conductivity
• Maximum strength and elongation
• Low outgassing
• Improved tech uniformity
• Excellent wear for longer life

Vespel SP21

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. technical specifications

Superior wear and low-friction properties for:

• Thrust washers
• Seal rings
• Valve seats
• Bearings
• Seals

Benefits

Vespel SP211

Need a lower coefficient of friction than SP-21? Not as concerned about thermal and wear resistance? Then SP-211 could be your solution. With Teflon PTFE as an additive, the coefficient of friction is further reduced, even without lubrication. technical specifications

Lowest coefficient-of-friction parts in both dry and lubricated applications such as:

• Sliding and linear bearings
• Bushings
• Thrust washers
• Seal rings

Benefits

• Low wear at high bearing PVs
• Low coefficient of friction
• Teflon-filled
• Superior unlubricated wear
• Excellent creep resistance
• Wear resistant up to 300 F
• Good tensile strength, elongation and flexural modulus

Vespel SP22

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. technical specifications

Graphite-enhanced polyimides for tight-tolerance applications:

• Bearings
• Thrust washers
• Seal Rings
• Ferrules
• Sleeves
• Strips
• Vanes

Benefits

• Enhanced resistance to friction and wear
• Minimal thermal expansion
• Maximum thermal conductivit
• High temperature resistance
• Improved dimensional and oxidative stability
• Minimum elongation

Vespel SP3

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. technical specifications

Excellent performance in vaccuum and dry environment applications including:

• Bushings
• Bearings
• Piston Rings
• Seals
• Gears

Benefits

• Maximum wear and friction resistance in vaccums and other dry environments
• Ultra-low outgassing
• High performance in aerospace applications

Vespel SCP5000

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. technical specifications

Unfilled resin designed to improve strength, temperature resistance and dimensional stability in:

• Semiconductor applications
• Automotive
• Aircraft engine parts

Benefits

• Ultra-high purity
• High thermal oxidative stability
• High stiffness

Vespel® SCP Family Now Available in Shapes

Vespel SCP5009

Provides material solutions for high wear and friction applications under high operating pressure and elevated temperature environments. Vespel® SCP-5009 shapes have a low coefficient of thermal expansion and provide good sealing as well as outstanding mechanical properties like high compressive strength and low creep, even at these extreme conditions.

DuPont™ Vespel® SCP-5009 HPLC Rotor Seal in Analytical Instrumentation (Application Story)

Vespel SCP5050

A new and innovative polyimide composition that improves high temperature and wear resistance compared to conventional polyimides allowing replacement of metal and graphite in more applications. Use of Vespel® SCP-5050 enables more efficient and durable systems, increased performance and reduced maintenance costs. The proprietary composition is designed to offer Coefficient of Thermal Expansion (CTE similar to steel).

Vespel® SCP Family Now Available in Shapes

Vespel SCP50094

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.

Unfilled resin designed to improve strength, temperature resistance and dimensional stability in:

• Semiconductor applications
• Automotive
• Aircraft engine parts

Benefits

• Excellent thermal oxidative stability
• High stiffness
• Excellent dimensional stability
• Lowest CTE

Vespel® SCP Family Now Available in Shapes

Vespel CR6100

A Teflon® PFA body, reinforced with high-tensile-strength carbon fiber - CR-6100 offers excellent chemical resistance while exhibiting superior resistance to creep - even up to 288°C (550°F)! It also provides excellent wear resistance and easy machinability for tight-tolerance application. Add in a CTE lower than steel in the x-y plane (due to planar carbon-fiber reinforcement), and you have an ideal material for a variety of applications. technical specifications

The ultimate in chemical and creep resistance for:

• Valve plates, seats and seals
• Pump and compressor components
• Gaskets
• Thrust washers
• Mechanical seals, wear strips and plates
• Bearings and bushings
• Grinding, lapping and polishing components

Benefits

• Outstanding creep resistance - even up to 288°C (550°F)
• Excellent chemical and wear resistance
• Easy machinability for tight-tolerance applications
• Virtually no water absorption
• Ideal for chemical and petroleum processing applications
• CTE lower than steel

Vespel SP202

DuPont Vespel SP202 polyimide parts and shapes decrease electrostatic loading in the manufacturing and handling of flat glass panels for liquid crystal displays and plasmas. They are ideal for use with products that are handled in high-temperature, vacuums or reactive environments.

Parts such as placing pins or pads and roller guides made from Vespel® SP-202 combine consistent levels of electrical conductivity with an unmatched combination of thermal resistance, wear resistance, moisture resistance, toughness, strength and machinability. Vespel® SP-202 parts demonstrate surface resistivity below 10³ ohms/square. Results of further tests to establish other typical characteristics will be available in the near future. technical specifications

Vespel SP-202 provides electrical conductivity and thermal resistance for:

• Pads/stoppers for glass/wafer contact in sputter/CVD chamber
• Pads/balls for glass/wafer transfer process

Physical Properties

• Antistatic
• Good machinability
• Excellent thermal resistance