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400 kV Class
Applications
Enamelled Wire Manufacturing
Class 200 overcoat
Premium Motor Windings
High-stress Class 200
Inverter-Duty Motors
Extreme PD resistance
High-Reliability Equipment
Defence & aerospace coils
Overview
Polyamide-imide Wire Enamels
UBL Polyamide-imide (PAI) wire enamels represent the highest performance tier in the wire enamel range, delivering Class 200 thermal performance and exceptional resistance to partial discharge, chemical attack, and mechanical stress. Used primarily as a topcoat over polyestermide base layers in dual-coat (bonded coat) wire systems, they are the standard for inverter-duty motors, aerospace applications, and any environment demanding the ultimate in insulation reliability.
Thermal Class 200 (C)
High viscosity — overcoat application
Product Range
Available Grades
| Product Code | Thermal Class | Wire Range | Description |
|---|---|---|---|
| UB AI 1013 BV | Class 200 (C) | 0.05–2.0 mm | Polyamide-imide overcoat enamel (bonded-coat variant); provides Class 200 thermal protection and outstanding PD resistance as topcoat over polyestermide base. |
| UB AI 1013 SC | Class 200 (C) | 0.05–2.0 mm | Self-crosslinking polyamide-imide overcoat; enhanced film hardness and chemical resistance; suitable for demanding inverter-duty and aerospace motor windings. |
Thermal Class
Class 200 (C) — highest standard thermal rating for wire enamels
Wire Range
0.05 mm to 2.0 mm diameter
Key Advantage
Maximum partial discharge resistance; used as overcoat in bonded-coat dual systems
Application
Overcoat layer on polyestermide base — forms the industry-standard Class 200 bonded coat wire
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