Pure Nomex- Dupont Insulation Paper is a calendered insulation paper that offers high inherent dielectric strength, mechanical toughness, flexibility, and resilience. Also available in variety, for an oil-filled transform.
Advantages:
Mechanical toughness and (in the grade) flexibility
Inherent Di-Electric Strength
Unaffected by most solvents, acids
Compatible with varnishes, adhesives & transformer fluids