Insulation Paper

Film Composite Paper

Polyester film laminated with presspaper for reliable transformer and motor slot insulation. Thermal Class E (120°C) performance with excellent dielectric strength and mechanical properties. Available in 6520 and 6521 grades.

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Film composite paper insulation material
Why Universal Metals

Reliable E Class Transformer Insulation

Laminated Structure
Polyester film bonded to cellulose presspaper with adhesive, creating a composite with superior properties compared to single-layer materials. Balanced electrical and physical characteristics for transformer winding insulation.
Dielectric Strength
High breakdown voltage (≥8 kV/mm) ensures reliable insulation in medium-voltage transformers and motors up to 11kV. Consistent performance across the full operating temperature range.
Mechanical Robustness
Presspaper backing provides tear resistance and handling durability during transformer winding operations. Easy processing for motor slot liners and phase insulation applications.
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Our technical team is ready to help with your film composite paper requirements for transformer insulation, motor slot liners, and phase insulation applications.

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