Which grade am I?
This is the original grade of unfilled Vespel
SP-1
This property is important for applications that experience a lot of wear
Coefficient of Friction or Wear Rate
I am the material used in a static seal for a valve.
SP-1 or SCP-5000
The database you can find a lot of great property information on materials run by NASA
MAPTIS
The polymer family Vespel is part of
Polyimide
The product called Type II Class 1 M in ASTM D6456
SP-21 ISO
This property is usually mentioned when looking at Valve Applications, having it be consistent across temperature ranges is a big benefit Vespel brings!
Compressive Modulus
I am a general journal bearing! I used to be made from PEEK, but couldn't withstand the high loads.
SP-21
Where you can find more information on Vespel including datasheets, application profiles, and brochures
Vespel.com Resource Center
A machine shop that works closely with their customers to specify materials and educate their customers is this color hat.
Red Hat (Good Hat)
This grade contains MoS2 and is most commonly used in space applications under vacuum!
SP-3
This decreases as you add more graphite into the Vespel. It can be important in some applications to choose a grade with lower this in order to prevent a mismatch between mating materials!
Coefficient of Thermal Expansion
I am a bearing in an aerospace application! I used to be made out of SP-21, but I kept failing due to high loads and high temperatures.
SCP-5050
What is my favorite movie
Talladega Nights
What lengths do we sell 1" SP-1 Diameter Vespel in
38, 19, 9.5
This grade contains graphite and PTFE
SP-211
If a material has a lower value of this property, it is typically a more brittle material.
Tensile elongation
I am a bearing for a mechanism on a satellite in vacuum!
SP-3
The ASTM standard Vespel is specified to
ASTM D6456
This agency developed SP-3 with Dupont
NASA
This is the Vespel grade with the highest amount of filler and the lowest CTE (Coefficient of Thermal Expansion)
SCP-5050
This property is important to be low for seals because seals, valve seats, and other parts under loads need to maintain their height and overall dimensions over time
Creep
It's a thermally insulative polyimide foam used in a lot of space/aerospace applications
SF (polyimide foam)
The state that all the Vespel resin is manufactured in
Ohio
PV stands for these words
Pressure and Velocity