I.S.T. has recently introduced the Tormed® line of polyimide enamel for tubing applications. The Tormed® family is colorless polyimides (three point yellowness <3) possessing the excellent thermal performance of traditional polyimides (Tg above 300⁰ C). Traditional polyimides have excellent thermal properties but have very poor color as they range from bright yellow to black depending on polymer and thus are not useful in applications where good optical clarity and ability to pigment to produce full range of colors is required.
The Tormed® family is designed to be used in tubing applications such as, medical tubing, where not only the performance of polyimide but also colorless product or pigment ability are desired. The new family of products has excellent optical clarity (>97% transmission) and color. The products can be pigmented to produce a full range of colors which is not possible with traditional polyimides while maintaining the excellent thermal performance of traditional polyimides.