High-temperature Polymers
Advanced Polymers Bridge the Gap for Extreme Applications
Material science is keeping pace with evolving applications by developing new, high-temperature polymers. Allegheny’s expertise is injection molding these high-temperature polymers is unmatched. Our expert team members, our tool room and our plant have all been built to facilitate the crafting of precision parts effectively.
Amorphous
Polybenzimidazole (PBI)
PBI, both the U-Series and T-Series, offers superior mechanical properties and the highest thermal stability among amorphous polymers. It is a cost-effective high-performance polymer for injection molding. One example of PBI is Celazole®.
Features
- Thermal stability
- Chemical resistant
- Wear resistant
- Low Friction
- Lubricated
Common Uses
- Bearings
- Bushings
- High-temp electrical applications
- High-temp structural applications
Polyimide (PI)
PI has excellent heat resistance and maintains mechanical properties even at high temperatures.
Features
- High-temperature
- Mechanical strength
- Low friction
- Good dimensional stability
Common Uses
- Bearings
- Bushings
- High-temp electrical applications
- High-temp structural applications
PolyAmide-Imide (PAI)
PAI is remarkable for it’s high-temperature capability, survives in applications up to around 280°C.
Torlon, one example of PAI, offers exceptional performance across a variety of grades. Properties include broad chemical resistance, compressive strength, high impact resistance, and excellent dimensional stability.
Features
- High heat resistance
- Low temperature toughness
- High temperature strength
- Chemical resistant (strong acids, most organics)
- Creep resistant
- Ductile
- Fatigue resistant
- Flame retardant
- Good dielectric strength
- Ultra-high impact resistance
- Wear resistant
Common Uses
- Bushings
- Connectors
- Electrical/Electronic applications
- Fasteners
- Machine/Mechanical parts
- Industrial equipment
- Thrust washer
- Friction and wear applications
Thermoplastic Polyimide (TPI)
TPI is often considered when seeking a replacement material for metal, ceramic, and other plastics. It offers excellent wear performance and continuous use temperatures up to 465°F (240°C). Aurum® is an example of a TPI.
Features
- High strength
- Wear resistant
- Carbon fiber reinforced
- High modulus/High rigidity
- Low outgassing
- Radiation resistant
- Chemical resistant
Common Uses
- Bushings
- Connectors
- Electrical/Electronic applications
- Fasteners
- Machine/Mechanical parts
- Industrial equipment
- Thrust washer
- Friction and wear applications
Polyphenylsulfone (PPSU)
PPSU amorphous material, which has a high glass transition temperature with best-in-class toughness.
Features
- Impact strength
- Low outgassing
- Heat resistant
- Chemical resistant
- Flame resistant
- Dimensional stability
- Electrical insulating properties
- Accepts varied colorants
Common Uses
- Structural components
- Housings
Polyetherimide (PEI)
With a unique balance of mechanical properties and processability, PEI resins offer exceptional design flexibility. An example of PEI is Ultem™.
Features
- Long-term heat resistance
- High strength and stiffness
- Dimensional stability
- Inherent flame resistance in most grades
- Semi-transparent
- Accepts varied colorants
Common Uses
- Plugs
- Antennae
- Fan components
- Air-management systems
- Electrical components
- Connectors
Polysulfone (PSU)
PSU is a high temperature, amber-colored, semi-transparent plastic material with good mechanical properties.
Features
- High-temperature resistance
- Chemical resistant
- Mechanical strength and stiffness
- Dimensional stability
- Radiation resistant
- Accepts varied colorants
Common Uses
- Laboratory equipment
- Membranes (for hemodialysis and water treatment)
- Electronical connectors, sockets
- Housings, casings
Polyethersulfone (PES)
With good chemical resistance and a high heat deflection temperature of 399°F (204°C), PES is often a good fit for food service applications.
Features
- Acid resistant
- Chemical resistant
- Creep resistant
- Flame retardant
- Good adhesion
- Good dimensional stability
- Good thermal stability
- Good toughness
- High heat resistance
- High rigidity
- Transparent
- Excellent electrical properties
Common Uses
- Appliance components
- Appliances
- Batteries
- Business equipment
- Electrical parts
- Electrical/Electronic applications
- Food service applications
- Metal replacement
Semi-Crystalline
Polyketones (PEK, PEEK, PEKK)
Polyketones, all the thermoplastics in the PAEK family, are high-performance, semi-crystalline thermoplastics that have best-in-class chemical resistance.
Features
- High-temperature resistance
- Excellent mechanical strength
- Superior chemical resistance
Common Uses
- Bushings
- Connectors
- Electrical/Electronic applications
- Machine/Mechanical parts
- Semiconductor equipment
- Thrust washer
- Friction and wear applications
Liquid Crystal Polymer (LCP)
LCP is resin characterized by it’s unique molecular structure, exhibits exceptional strength, heat resistance and chemical inertness.
Features
- Exceptional strength
- High heat resistance
- Chemical inertness
- Dimensional stability
Common Uses
- Electrical components
- Structural components
- Sensors
- Connectors
Polyphenylene Sulfide (PPS)
PPS is known for primarily for chemical resistance, and also has good dimensional stability and flame resistance.
Features
- Chemical resistance
- Flame resistance
- Electrical insulation
- Mechanical strength
- Temperature resistance
Common Uses
- Computer hard drive components
- Heating and cooling systems
- Components
Flouropolymers (PTFE, PFA, ETFE, ECTFE, PVDF)
Fluoropolymers, like PTFE, are characterized by a high resistance to solvents, acids and bases.
Features
- Chemical inertness
- Thermal stability
- Excellent electrical insulation
- Thermal insulation
- Low friction and non-strick properties
- Mechanical strength and durability
- High purity
Common Uses
- Electronics
- Food packaging
- Equipment
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