What material is medical-grade heat shrink tubing made of?

1. Polyolefin heat shrink tubing: Polyolefin heat shrink tubing is a multipurpose material with good heat resistance and chemical stability. It is often used in medical devices, such as surgical instrument protection, wire insulation, connector protection, waterproofing, etc.
2. PTFE: It is a material with excellent high-temperature resistance and chemical stability. It is usually used in high-temperature environments of medical equipment, such as the insulation of high-temperature sterilization equipment.
3. FEP: It has high transparency, high-temperature resistance, and a smooth surface, it is usually used for device protection.
4. Silicone rubber: Silicone rubber is a material with good biocompatibility, and is usually used in medical equipment that needs contact with the human body, such as medical sensors, skin contact materials, etc.

These materials often have properties such as biocompatibility, high-temperature resistance, chemical stability, and electrical insulation, making them suitable for different types of medical device applications. Selecting the appropriate medical-grade heat shrink tubing materials should based on the needs of the specific application and relevant medical standards. In addition, ensure the selected materials meet the relevant requirements of biocompatibility testing to ensure their safety and suitability.