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Injection Molding with Ultem^®

PEI (Polyetherimide) Ultem^® is commonly used in applications where tight tolerances and low warp are essential due to its resilience against heat exposure. Learn more about PEI (Polyetherimide) Ultem® properties and applications below.

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PEI (Polyetherimide) Ultem^®

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PEI (Polyetherimide) Ultem^® is a semi-transparent, high-strength polymer with excellent heat tolerance, maintaining its strength and rigidity in continuous operating temperatures up to 340° F. As a member of the PEI (polyetherimide) family of thermoplastic resins, Ultem^® supplies mechanical stability yet is easy to process. This lends flexibility and freedom in design for a wide range of part geometries and applications.

These properties, such as its resilience against heat exposure, also make Ultem^® a good choice for applications that require tight tolerances and minimal warping. Common industries that take advantage of Ultem^® include aerospace or aircraft components, and medical and pharmaceutical applications.

Ultem^® is available in different grades that provide enhanced benefits for chemical and heat resistance or elasticity. It also offers high tensile strength, stiffness, good strength-to-weight ratio, and dimensional stability. Ultem^® exhibits natural flame resistance and is known for a low smoke generation under heat exposure.

Ultem^® the Versatile Polymer

Ultem^® properties of high heat resistance (performing continuously to 340° F), and durability help replace metal parts for weight reduction in industries seeking lighter loads. It resists stress cracking under exposure to acids, alcohols, fats and oils, and other fluids. This polymer also is resistant to gamma radiation and ultraviolet rays. It resists creep, or the tendency of materials to deform and degrade under repeated mechanical stress.

High-performance thermoplastic materials such as Ultem^®, which can serve as a lightweight alternative to metal, are in increasing demand in industrial manufacturing applications, and in the automotive, medical, and semiconductor industries.

Its hydrolysis resistance and ability to tolerate repeated sterilizations for reusable devices make it a viable polymer for medical devices and components. Within the semiconductor industry, its arc resistance makes Ultem^® a polymer of choice to fabricate components. This feature, alongside its malleability, also makes it well suited for applications that require deposition, removal, patterning, and modification of electrical properties.

Ultem^®’s list of properties includes:

• Excellent chemical resistance
• Good high-temperature characteristics
• Precise tolerance control
• Heat, solvent, and flame resistant
• High dielectric strength and stability
• Excellent mechanical properties
• Rigid and strong
• Exceptional resistance to environmental forces

Applications for Ultem^® Utilization

As a high-performance thermoplastic with excellent strength, rigidity, and anti-warp characteristics, Ultem^® can substitute for metal parts in applications subject to continuous high heat. These are important characteristics in multiple industries such as aerospace and the medical device industry. Its balanced properties make Ultem^® an ideal choice across many industry segments.

Aerospace/Defense: Personal storage units, oxygen panels, ventilation systems, connectors, cable ducts, latches, hinges, food tray containers, door handles, interior cladding parts

Appliances: Food preparation and sterilization equipment

Automotive: Electro-hydraulic control valves, variable valve timing, variable displacement oil pump control and cylinder de-activation control, and drive train and braking systems

Chemical: Fillers for high efficiency production

Electrical: Electrical connectors

Industrial: Manifolds, machined bushings

Medical: Ultem^® offers properties highly compatible for parts on medical devices, including its durability, heat resistance, weight reduction, reduced sterilization burden and improved MRI compatibility. Excellent for reusable devices with a range of sterilization methods.

Oil & Gas: Compressors and pumps

Semiconductor components: Circuit breaker housings, probes, wafers

Rely on Performance Plastics for Ultem^® Parts

Performance Plastics has honed its expertise in injection molding over decades, specializing in high performance plastics. As an amorphous material, Ultem^® can cause complications during the injection molding process. This requires a specific set of conditions, equipment and specialized processing procedures for effective management and successful project completion. Our proprietary tool design software, processes and equipment enable us to injection mold components having complex geometries made from challenging, ultra, high performance thermoplastic materials, and reinforced compounds.

Ultem^® is one of the many high-performance polymers that form a core specialty for Performance Plastics. Contact us today with your project specifications for injection molded parts.
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Let us solve your toughest engineering problems.

We work with our customers to design solutions utilizing the capabilities of ultra and high-performance thermoplastic resins, including but not limited to PEEK, Torlon®, Ultem®, EXTEM®, PFA, FEP, PVDF, ETFE.  Capitalizing on advanced injection molding techniques most appropriate for the project, we leverage our vast experience and suite of thermoplastic design and manufacturing skills to solve engineering challenges and deliver components that enhance product performance.
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Contact an Engineer  to Get Started

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