Vespel Plastic Properties: What is Vespel®?
Vespel is a polyimide-based plastic material with a highly ordered molecular structure. It is known for its high-performance and ability to withstand temperature ranges.
It is resistant to wear and chemicals, making it a suitable option for those seeking durability. It also offers mechanical and insulation properties and does not produce outgassing when subjected to high temperatures. It does not melt either, making it one of the best solutions for high-quality manufacturing.
Key mechanical properties include:
- Ability to withstand high temperatures
- Low outgassing
Thermoplastics vs Thermosets
Polymers are available in two categories
The main difference between thermoplastics and thermosets is in how they are handled. Thermosets are a material that gains strength when heated. However, once heated, they cannot be remolded, reheated, or cooled and cannot be softened.
A thermoplastic, on the other hand, can be remolded, reheated, or cooled, without causing any chemical changes. Thermoplastics can be softened, or hardened repeatedly.
Vespel is a thermoplastic, which means it can be melted in the heat and can be used in high-heat, low-wear, and low-friction applications. Compared to most plastics, Vespel SP offers superior temperature stability and high wear resistance.
Advantages of Machining Vespel Plastic
Machining Vespel plastic is an alternative to materials like stainless steel or even aluminum alloys. Additional advantages of using a Vespel polyimide include the following high-performance properties:
Vespel is known for its exceptional wear resistance, which is a measure of how well a material can withstand abrasion, corrosion, and other environmental stresses. This makes Vespel an ideal choice for applications such as oil and gas production and aerospace parts.
This polyimide-based plastic has an extremely ordered molecular structure which gives it a high chemical resistance to acids, alkalis, and solvents. This makes it a great choice for applications that require high levels of durability.
Vespel’s low outgassing is one of its most recognizable features and the main reason it is so popular in niche industries like aerospace. Outgassing, also known as off-gassing, occurs when a material releases volatile compounds into the surrounding atmosphere. These materials can include water vapor, carbon dioxide, methane, and other gasses.
Materials that produce significant outgassing can have a detrimental effect on the environment and people’s health. The compounds described above may cause respiratory irritation or even more serious health effects when breathed in over long periods of time, and they may contribute to air pollution, as well.
Vespel is capable of maintaining its shape and size over time, even in the most adverse environmental conditions. This makes it an ideal material for components that need to withstand extreme temperatures or pressure.
Durability & Resistance to High Temperatures
Even in extreme conditions and temperatures, Vespel has the ability to maintain structural integrity as well as its high tensile strength,
making it a suitable choice for industries that require cold or heat resistance.
Aerospace parts and components require materials with superior lubricity for optimal performance. Vespel’s high lubricity helps make sure that bearings, seals, and other moving parts are able to move efficiently in their respective environment.
A creep resistant material is one that has a high resistance to deformation under pressure and force. Vespel has outstanding creep resistance, meaning it can maintain its shape in extreme conditions without deforming like other materials might. This makes it an ideal choice for applications such as turbine blades or gear systems that require great amounts of torque and pressure.