PEIPolyetherimide
PEI (polyetherimide) offers excellent strength and performance up to 170℃, with good electrical insulation and dielectric properties. It is rated UL94 V-0 and is highly resistant to high-energy radiation such as gamma rays and X-rays. Duratron PEI is a high-strength, flame-resistant and heat-resistant amorphous polymer.
- Strength and performance up to
- 170℃
- Flammability
- UL94 V-0
- Compliance
- FDA, USP Class VI
- Glass fiber (U2300)
- 10, 20, 30%
Features
High strength up to 170℃
Suited to applications that need high strength and consistent dielectric properties over a wide frequency range at up to 170℃.
UL94 V-0 and radiation resistance
Highly resistant to high-energy radiation such as gamma rays and X-rays.
Low moisture absorption, acid resistance
Absorbs little moisture and resists acidic solutions.
Repeated autoclave sterilization
Withstands repeated autoclave sterilization cycles.
FDA and USP Class VI compliant
Duratron PEI complies with FDA and USP Class VI, and medical-grade Duratron PEI is available in various colors.
Properties
| Property | Unit | Test method | Value |
|---|---|---|---|
| Strength and performance retained up to | ℃ | — | 170 |
| Flammability | — | UL 94 | V-0 |
| Density | g/cm³ | — | Pending |
| Tensile strength | MPa | — | Pending |
| Flexural modulus | MPa | — | Pending |
| Heat deflection temperature | ℃ | — | Pending |
| Water absorption | % | — | Pending |
Typical values; they vary by grade and form. Rows marked “Pending” are still being verified — ask for them with your quote request if you need them.
Grades
Duratron® U2300 PEI
10, 20 or 30% glass fiber reinforced
The glass-reinforced version of Duratron U1000 PEI, with 10%, 20% or 30% glass fiber.
It improves rigidity and dimensional stability while retaining most of the useful properties of the base material.
Applications
- Reusable medical device components
- Analytical instrument components
- Electrical and electronic insulators, including semiconductor parts
- Parts that must keep their strength and stiffness at high temperatures
- Clamps connecting display units and printed circuit boards in aircraft, tanks and ships
- Surgical probes
- Manifolds for pharmaceutical process equipment
- High-frequency insulators for microwave communication components
Technical notes
Clamps: high voltage insulation and flame resistance make it suitable for clamps connecting display units and printed circuit boards in aircraft, tanks and ships. (Previous material: acetal)
Surgical probes: probes machined from Duratron PEI rod can be sterilized and offer high strength and stiffness. (Previous materials: acetal, polysulfone)
Manifolds: manifolds for pharmaceutical process equipment, machined from Duratron PEI sheet, withstand hot chemical solvents and steam sterilization. (Previous material: aluminum)
Insulators: high-frequency insulators for microwave communication components can be machined from Duratron PEI. (Previous material: ceramic)
Compare with other materials
Side-by-side comparison guides are in preparation. See each material page for sizes and properties.
Frequently asked questions
What temperature can PEI withstand?
PEI keeps excellent strength and performance up to 170℃, with consistent dielectric properties over a wide frequency range even at that temperature.
What is the flammability rating of PEI?
PEI is rated UL94 V-0. It is also highly resistant to high-energy radiation such as gamma rays and X-rays.
Can PEI be used for medical device parts?
Duratron PEI complies with FDA and USP Class VI and withstands repeated autoclave sterilization. It is used for reusable medical devices and surgical probes, and medical-grade Duratron PEI comes in various colors.
How does Duratron U2300 PEI differ from U1000 PEI?
U2300 is U1000 reinforced with 10%, 20% or 30% glass fiber. It retains most of the base material’s properties while adding rigidity and dimensional stability.
