We offer POLYWEL plastics' thermoplastic Polyimide POLYTEM ™. This thermoplastic Polyimide (TPI) is the Polyimide that has a glass transition temperature of 245℃ and therefore exhibits high temperature stiffness properties and is superior to PEEK resin.

TPI granules in general can be either amorphous or semi-crystalline. Regarding processing thermoplastic polyimide can be injection molded, extruded and recycled. Looking at the properties of TPIs, it has high rigidity, excellent creep resistance and low thermal expansion. In addition, TPI has high electrical breakdown strength and excellent radiation resistance. Above all, TPI is suitable for designing thin walls and complex shapes with high dimensional stability. As it is generally lighter than metal or steel materials, it can be used as a replacement.

§ Excellent heat dissipation

§ PFAS-free - no fluorine compounds

§ Possibility of fibre reinforcement and production of composites with high-performance thermoplastic polymers

§ Thinner coatings Volume as PEEK

§ Elasticity

§ Resistance to radiation

§ Creep resistance

§ Chemical resistance

§ Dimensional stability

Applications

As Polytem ™ has good properties it can be used in applications that, for instance, need improved sealing properties, such as turbo charger’s abradable seals. Moreover Polytem ™ TPI offers high sliding properties, creep resistance and light weight, it can be used as bearing, pistons, washers or seal rings. Additionally, and most importantly Polytem ™ is offering heat resistance, high temperature stiffness and chemical resistance and is therefore mainly used as electric wire coating or in structural components of aircraft engines.

To sum up, Polytem ™ is used in applications such as

• Cable insulation: powder coating, liquid coating, extrusion coating     

• Electrical components

• Ball and plain bearings

•  Structural components in high-performance environments

• Washers

• Seal rings

• Pistons

• Structural components of aircraft engines

• Resin for CFRP