Vespel technical data sheet

Vespel® polyimide is nowadays widely used in sectors such as aerospace, cryogenics, power generation or automotive industry. This popularity is due to the exceptional properties of Vespel® polyimide which meet the requirements of many applications.

Vespel® polyimide: qualities and properties that make its success

When we talk about Vespel® polyimide, we think first of its proven performances in cryogenic applications. Indeed, materials made of this high performance plastic material work continuously, even at cryogenic temperatures of 349°C. Vespel® polyimide resists wear and friction at high speeds in both lubricated and non-lubricated environments. In addition, this material has exceptional impact and creep resistance. In addition to its outstanding chemical resistance, Vespel® polyimide benefits from easy machinability and good dimensional stability.

This polymer with an infusible and crystalline structure has no glass transition temperature. It has the advantage of being chemically inert, even if the material comes into contact with grease, chlorinated solvents, kerosene, lubricant or refrigerant. Another reason why Vespel® polyimide is so popular is that it has virtually no moisture absorption. It is resistant to radiation and the effects of outgassing. Dupont Vespel® polyimide is available in a variety of shapes depending on the needs and requirements of the application. These include SP-1, SP-3, SP-21, SP-211, SP-22, SP-202, SCP-5000, SCP-5009 and SCP-50094. Technical specifications may vary from one form of Vespel® polyimide to another. SP-21, for example, has low wear and balanced physical properties. SCP-5000 is used for its strength, hardness and high chemical resistance over wide temperature ranges. It also benefits from a good thermal stability to oxidation.

Polyimide Vespel® : a high performance plastic material processed by SPN

Polyimide Vespel® is one of the high performance plastic materials we are used to process at SPN. We process Vespel® polyimide by molding or compression in order to manufacture semi-finished products such as tubes, bars, plates and various components, especially for the aeronautical and industrial sectors.

In addition to Vespel® polyimide, SPN also processes or machines other high performance plastic materials such as PEEK, PEK, PAEK or PEI. Today, SPN is the European leader in the processing and machining of PCTFE, a highly coveted plastic due to its watertightness even at cryogenic temperatures.