PAI

Key Properties of PAI

Exceptional mechanical strength under load
High temperature resistance
Excellent wear and friction performance
Strong creep resistance
Good dimensional stability in precision parts
High stiffness and fatigue resistance
Reliable performance in dry-running applications
Suitable for severe-service components

These properties make Polyamide-Imide (PAI) a strong choice for components that must maintain strength, accuracy, and wear performance under heat, pressure, and continuous mechanical stress.

Applications

PAI Industrial Applications

Polyamide-Imide (PAI) components are used in high-performance applications where parts must retain strength, accuracy, and wear resistance under severe operating conditions.

High-load bearings and bushings
Seals, wear rings, and thrust washers
Aerospace and defense components
Precision machine parts
Pump and compressor components
Electrical and insulation parts
High-temperature sliding components
Dry-running wear applications

Polyamide-Imide (PAI) is suited for critical applications where heat, pressure, friction, dimensional control, and long service life are all important performance requirements.

PAI PRODUCTS OFFERED

PAI Stock Shapes

Plastic Engineering Solution supplies Polyamide-Imide (PAI) in stock shapes and machined forms for severe-service applications where strength, stability, and wear performance are critical.

Icon

PAI Rods

(1mm - 127mm diameter)

PAI Plates

(4.75mm - 31.75mm thickness)

PAI Tubular bar

(OD - 31mm x ID - 19mm x LT - 1220mm TO
OD - 101mm x ID - 57mm x LT - 610mm)

PAI products are typically selected for high-load, high-temperature, low-wear, and precision applications where conventional engineering plastics may not provide the required long-term reliability.

AVAILABLE GRADES

PAI Grades Supported

We support a range of Polyamide-Imide (PAI) material grades selected for high-load, high-temperature, and wear-critical applications.

Icon
Natural PAI
Black PAI
Bearing-grade PAI
Glass-filled PAI
Carbon-filled PAI
Wear-resistant PAI grades
High-strength industrial PAI
Custom PAI grades based on application requirements

Our team helps select the right PAI grade based on load, temperature, sliding speed, friction conditions, dimensional stability needs, and expected service life.

magnific_pai-sheets-machined-rolle_oh2ZE4r829
magnific_technician-using-micromet_8vA2FYNIrU
Machining capability

PAI Machining

Polyamide-Imide (PAI) is a high-performance material that needs careful machining control because of its stiffness, strength, and use in close-tolerance applications. When machined correctly, PAI delivers excellent dimensional accuracy and long-term stability in severe-service components.

Our PAI machining capability includes:

For PAI parts, machining is planned around the final application — especially where friction, heat, pressure, and dimensional control directly affect component performance. This helps achieve clean finishes, accurate fits, and reliable operation in demanding industrial environments.

Tolerance information

PAI Machining Tolerances

Polyamide-Imide (PAI) machining tolerances depend on:

Component geometry

Wall thickness

Application requirements

 Heat and load conditions

Part size and complexity

Friction and wear environment

Bearing, bushing, or seal fit requirements

Typical achievable tolerances are maintained as per design feasibility, with tighter tolerances possible for precision applications after engineering evaluation.

Detailed tolerance information can be provided during the RFQ stage.