Aerospace-Grade ExcellenceHigh-Performance Thermoplastic for Mission-Critical Applications
ULTEM 9085 is a highly versatile and reliable thermoplastic that has earned its reputation as a go-to material for demanding applications. Its exceptional strength-to-weight ratio, heat resistance, flame, smoke, and toxicity rating, and documented traceability make it an ideal choice for industries seeking reliable and high-performance solutions.
Quick Specifications


Advanced Materials
Flame Retardant Aerospace Thermoplastic
ULTEM 9085 is considered an engineering grade Fused Deposition Modeling (FDM) thermoplastic renowned for its exceptional strength-to-weight ratio and flame-retardant properties. This polyetherimide (PEI) blend offers superior mechanical performance and ease of printing, making it ideal for demanding engineering applications. With its exceptional glass transition temperature of 177°C and compliance with multiple aerospace and railway FST standards, ULTEM 9085 enables innovative designs and durable components that excel in the most challenging environments. The material's documented traceability and certified grade options provide the quality assurance required for critical applications.
Functional Applications
From aerospace to automotive applications, ULTEM 9085 delivers reliable performance across demanding requirements. Its unique combination of exceptional strength-to-weight ratio for lightweight high-performance parts, outstanding flame, smoke, and toxicity (fst) performance meeting aerospace standards, high glass transition temperature (177°c) for superior thermal stability makes it a trusted choice for engineers.
Aerospace Interior Components
FST-compliant cabin components, air ducts, and structural brackets meeting 14 CFR 25.853 standards for flame, smoke, and toxicity
Automotive Under-Hood Components
Heat-resistant housings, sensor brackets, and electrical connectors for high-temperature automotive environments
Manufacturing Tooling
High-temperature jigs, fixtures, and assembly aids capable of withstanding demanding manufacturing processes
Electrical & Electronics
Insulating components, wire harness brackets, and high-temperature electrical housings with excellent dielectric properties
Military & Defense
Ruggedized components, protective housings, and mission-critical structural parts for defense applications




Technical Datasheet
Advanced Manufacturing
Built with Precision FDM Technology
ULTEM 9085 is manufactured using Fused Deposition Modeling (FDM) technology, offering reliable performance for functional prototypes and end-use parts.

Industrial-grade FDM technology delivers reliable performance and mechanical properties for ULTEM 9085 production. Our advanced thermoplastic extrusion process ensures optimal layer adhesion and dimensional accuracy.
- Layer Height: 0.254 mm (0.010 in) to 0.330 mm (0.013 in). Fine layer resolution delivers smooth surface finish and precise feature definition.
- Tolerance: ± 0.127 mm (± 0.005 in) or ± 0.15%, whichever is greater. Consistent dimensional accuracy across complex geometries and thin-wall features.
- Build Volume: 914 × 610 × 914 mm (36 × 24 × 36 in). Large production capacity enables efficient manufacturing of multiple parts or assemblies.
Technical Data
Mechanical Properties
ULTEM 9085 exhibits excellent mechanical properties, making it ideal for functional prototypes and end-use parts that need to meet demanding performance requirements in aerospace and automotive applications.
Technical Specifications
Measurement | Value | Standard |
---|---|---|
Tensile Strength (XZ Axis) | 69.2 MPa | ISO/ASTM |
Tensile Strength (ZX Axis) | 39.4 MPa | ISO/ASTM |
Flexural Strength (XZ Axis) | 104 MPa | ISO/ASTM |
Flexural Strength (ZX Axis) | 73.1 MPa | ISO/ASTM |
Compressive Strength (XZ Axis) | 139 MPa | ISO/ASTM |
Compressive Strength (ZX Axis) | 342 MPa | ISO/ASTM |
Tensile Modulus (XZ Axis) | 2.52 GPa | ISO/ASTM |
Tensile Modulus (ZX Axis) | 2.41 GPa | ISO/ASTM |
Flexural Modulus (XZ Axis) | 2.40 GPa | ISO/ASTM |
Flexural Modulus (ZX Axis) | 2.13 GPa | ISO/ASTM |
Impact Strength (XZ Axis) | 88.5 J/m | ISO/ASTM |
Impact Strength (ZX Axis) | 39.2 J/m | ISO/ASTM |
Elongation at Break (XZ Axis) | 5.4 % | ISO/ASTM |
Elongation at Break (ZX Axis) | 1.9 % | ISO/ASTM |
Performance Characteristics
ULTEM 9085 delivers exceptional mechanical performance with exceptional strength-to-weight ratio for lightweight high-performance parts, effectively handling demanding load conditions. Its balanced mechanical profile allows it to maintain structural integrity while preventing brittleness in critical applications.
These qualities make it well-suited for aircraft cabin interior components and ducting, automotive under-hood brackets and housings, railway interior fire-resistant components, providing long-term durability in demanding environments. ULTEM 9085 maintains dimensional stability over time, ensuring consistent performance across temperature and stress variations.
This makes it a reliable choice for applications requiring precise geometries and tight tolerances across aerospace, automotive, railway industries. Its versatility and durability allow it to perform consistently across a wide range of mechanical applications, ensuring parts maintain their integrity under repetitive stress and environmental conditions.
Key Strengths
Ideal Applications
Design Considerations
Technical Data
Thermal Properties
ULTEM 9085 exhibits exceptional thermal stability and outstanding performance in demanding thermal environments.
Technical Specifications
Property | Value | Standard |
---|---|---|
Heat Deflection Temperature @ 66 psi | 176.9 °C | ISO/ASTM |
Heat Deflection Temperature @ 264 psi | 172.9 °C | ISO/ASTM |
Glass Transition Temperature | 177.3 °C | ISO/ASTM |
Continuous Use Temperature | 170 °C | ISO/ASTM |
Thermal Conductivity @ 0°C | 0.2136 W/m·K | ISO/ASTM |
Thermal Conductivity @ 90°C | 0.2095 W/m·K | ISO/ASTM |
Coefficient of Thermal Expansion (XZ) | 44.45 μm/m·°C | ISO/ASTM |
Coefficient of Thermal Expansion (XY) | 44.89 μm/m·°C | ISO/ASTM |
Thermal Performance
ULTEM 9085's thermal properties ensure minimal dimensional deviation under fluctuating thermal conditions, making it highly suitable for applications requiring tight tolerances and structural integrity at elevated temperatures. ULTEM 9085 maintains consistent mechanical performance even in thermally and environmentally variable conditions across aerospace and automotive and railway and military & defense and electronics and medical device and manufacturing applications.
Its thermal conductivity and insulating properties make it an excellent candidate for automotive under-hood brackets and housings, military equipment housings and protective components, medical device enclosures and sterilizable parts. ULTEM 9085 resists thermal fatigue and creep deformation, particularly in cyclic thermal loading environments.
Prolonged exposure to temperatures approaching its upper limit may lead to gradual material degradation. In applications requiring sustained operation in high-temperature environments, consult with our engineering team for material recommendations and design guidelines.
Resources
Operating Range
Thermal Benefits
Thermal Applications
Thermal Considerations
Technical Data
Electrical Properties
ULTEM 9085 electrical properties for reference and design considerations.
Technical Specifications
Property | Standard | Unit | Value |
---|---|---|---|
Volume Resistivity | - | Ω·cm | 6.89×10¹⁵ |
Dielectric Constant (1 kHz) | - | - | 2.80 |
Dielectric Constant (2 MHz) | - | - | 2.65 |
Dissipation Factor (1 kHz) | - | - | 0.002 |
Dissipation Factor (2 MHz) | - | - | 0.010 |
Dielectric Strength | DIN 53481 | V/mil | 830 |
Electrical Performance
Electrical properties for ULTEM 9085 are provided for reference and design considerations. Please refer to the technical specifications table above for specific values and testing standards.
For detailed electrical performance data and material datasheets, please refer to the resources section or contact our team for additional information.
Resources
Electrical Applications
Electrical Considerations
Technical Data
Chemical Properties
ULTEM 9085 chemical compatibility data for reference and design considerations.
Chemical Compatibility Chart
Chemical | Type | Compatibility |
---|---|---|
Automotive Fluids | Hydrocarbon | Excellent |
Fully Halogenated Hydrocarbons | Hydrocarbon | Excellent |
Alcohols | Solvent | Excellent |
Aqueous Solutions | Salt Solution | Excellent |
Aliphatic Hydrocarbons | Hydrocarbon | Good |
Mineral Oils | Hydrocarbon | Good |
Weak Acids | Acid | Good |
Weak Bases | Base | Good |
Strong Acids | Acid | Poor |
Strong Bases | Base | Poor |
Ketones | Solvent | Poor |
Aromatic Hydrocarbons | Hydrocarbon | Poor |
Chemical Performance
ULTEM 9085 chemical compatibility data is provided for reference and design considerations. Please refer to the compatibility chart above for specific chemical resistance ratings.
For applications involving chemical exposure, please consult the compatibility chart and contact our team for application-specific guidance.
Resources
Resistance Categories
Chemical Considerations
Design Considerations
Technical Data
Biocompatibility & Compliance
ULTEM 9085 is biocompatible, meeting USP Class VI standards, making it safe for short-term contact with skin and mucosal membranes.
Compliance Standards
Property | Compliance | Standard/Regulation |
---|---|---|
UL 94 V-0 | Yes | Flame retardancy rating for electrical components |
14 CFR 25.853 | Yes | Federal Aviation Regulation for cabin materials FST |
AITM 2.0007B & 3.0005 | Yes | Airbus industry test methods for FST |
BSS 7238 & 7239 | Yes | Boeing Specification Support Standards for FST |
ASTM E595 | Yes | NASA outgassing standard for space applications |
EN 45545-2 | Yes | European fire protection standard for railway vehicles |
NFPA 130 | Yes | Fire protection for fixed guideway transit systems |
UN ECE Regulation 118 | Yes | Fire protection of buses and coaches |
RoHS | Yes | Restriction of Hazardous Substances Directive |
USP Class VI | Yes | Biocompatibility for medical devices |
Compliance Resources
Medical Applications
Material Datasheets
Download comprehensive technical documentation for ULTEM 9085, including safety data, compliance certificates, and design guidelines.
Technical Datasheets
Compliance Certificates
Design Resources
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