Ultem® 1000 & Ultem® 2300
Ultem® is a high-performance polyetherimide (PEI) resin that has a variety of properties, including high heat resistance, strength, stiffness, and broad chemical resistance. Its resistance to most acids and bases makes it an ideal material for a wide range of applications in the industrial, automotive, and electronics markets.
There are several grades of Ultem® resin, including Ultem® 1000 and Ultem® 2300. Here we’ll explain the properties, benefits, and common applications of these two common grades.
Ultem® 1000 & Ultem® 2300 Properties
As a member of the polyetherimide (PEI) family, Ultem® is a semi-transparent, strong thermoplastic that can be thermoformed, injection molded, or extrusion blow molded. It functions well as electrical insulation and in high-temperature applications.
Ultem® 1000
Ultem® 1000 is a general-purpose, unfilled grade of Ultem® that offers exceptional electrical, thermal, and mechanical properties. Its limiting oxygen index (LOI) and high flame resistance make it ideal for interior aircraft components. It’s also resistant to gamma and UV radiation.
Ultem® 2300
Ultem® 2300 is a high-performance grade that is 30% glass-filled. It’s more rigid and heat-resistant than Ultem® 1000, making it ideal for applications where high temperatures or shock are common. Ultem® 2300 is also suitable for medical applications because it can withstand the high heat and steam exposure of autoclave sterilization.
Key Properties of Ultem® 1000 & Ultem® 2300
Some key properties of both Ultem® 1000 and Ultem® 2300 include: 
- Flame retardant
- Hydrolysis-resistant
- Low outgassing
- High dielectric strength
- Suitable for continuous high-heat applications up to 340 °F
- High heat deflection temperature
- High strength
- UV-resistant
Benefits of Ultem® 1000 & Ultem® 2300
With such excellent thermal, electrical, and mechanical properties, using Ultem® 1000 and Ultem® 2300 comes with many benefits.
Extremely Strong and Stiff
Both grades of Ultem® offer excellent strength and stiffness up to 392 °F. Unfilled Ultem® 1000 has the same strength of other thermoplastics that contain opacifying fillers.
Easy to Thermoform
Thermoforming is the process of forming a thermoplastic sheet by applying heat and pressure to the raw plastic material. Ultem® is easy to form—with thicknesses as low as 0.2 mm—because it can withstand high temperatures.
High Dielectric Strength
Ultem® is one of the few materials that can maintain its dielectric strength at elevated temperatures. It is suitable for applications with wide frequency ranges and where a high degree of insulation is necessary.
Easy to Machine and Fabricate
Ultem® is easily machined because it retains its electrical, chemical, and thermal properties even after extensive machining or exposure to harsh conditions. Its fiber orientation enables it to withstand a lot of stress.
Resistant to Hydrolysis
Resistance to hydrolysis means that the material does not break down in water or in the presence of moisture, making it an ideal material for applications where it will be exposed to these elements.
Withstands Repeated Steam Sterilization Cycles
Ultem® is resistant to repeated sterilization cycles in a steam autoclave, meaning the material will not break down and lose its effectiveness when exposed to hot water or steam.
Common Applications
Ultem® 1000 and Ultem® 2300 share common applications, such as: 
- Rotors
- Pumps
- Manifolds
- Seat fittings
- Chip test sockets
- Ventilation systems
- Electrical connectors
- Electrical insulation
- Scientific equipment
- Guides for electric bundles
- Sensor housing and gearboxes
- Medical instruments
- Semiconductor equipment
Expert Ultem® 1000 & Ultem® 2300 Machining Services
At COMCO Plastics, we have vast experience machining Ultem® 1000, Ultem® 2300, and other Ultem® plastic grades. We take pride in our ability to provide quality machining services that meet your requirements. Get in touch with us or request a free quote today for more information on how we can serve your business.
