Nomex® T993 Medium Density Polyaramid Film (Polymetaphenylene isophthalamide)

Nomex® T993 Medium Density Polyaramid Film (Polymetaphenylene isophthalamide) reflects the Nomex 993 pressboard grade, balancing rigidity and impregnability for structural insulation where shape retention and dielectric integrity must coincide. Compared with low-density variants, T993 holds edges and fastener loads more firmly, yet still accepts varnish or oil to bond stacks and suppress partial discharge. Transformer and large motor manufacturers use it for spacers, pressure rings, barriers, and clamping components that carry load next to warm windings. In assembly, parts machine and die-cut cleanly, minimize dusting, and present smooth faces for reliable bonding. The material’s thermal endurance helps preserve clearances and surface quality after bake and in long service, contributing to quieter, more efficient equipment. For development and production, T993 offers a versatile, medium-density aramid sheet for durable structural insulation across power and industrial platforms.