Material advantages of DMD composite film
DMD insulating composite film is a kind of composite insulating layer material, which is made of one layer of polyester film coated with adhesive and one side is polyester fiber fabric non-woven. The general name is DMD.
DMD is one of the composite insulating papers on the market. It has high impact toughness, dielectric performance and high temperature resistance (Class B and Class F). Polyester dmd paper is the shaping insulating layer material for Y series motors.
The thickness of dmd paper is: 0.15mm, 0.18mm, 0.20mm, 0.23mm, 0.25mm, 0.30mm, 0.35mm, 0.40mm, 0.45mm, etc.

High temperature resistant DMD insulating paper is divided into: B grade (130℃), F grade (156℃).
In addition, as high quality insulating paper, DMD composite film can be used as slot insulating layer, inter-turn insulating layer, solid insulating layer, gasket insulating layer of small and medium-sized motors and power transformer insulating layer. The product has long been used as a substitute for Nomex aramid fibers in the West and Southeast Asia.
oil immersed transformer lifespan
oil immersed transformer maintenance
transformer lifecycle
transformer insulation aging
dry type transformer temperature monitoring
- more+releated article
- 2026-05-11How Long Does an Oil-Immersed Transformer Last
- 2026-05-08Modern Power System Dry-Type Transformer Insta
- 2026-05-07Oil-Immersed Transformer Overheating: Causes,
- 2026-05-07Dry-Type Transformers for Data Centers: 2026 R
- 2026-04-30Air-Core Reactor vs Iron-Core Reactor: How to
- 2026-04-29Compact Enclosed Transformer for Smart Grid: T
- 2026-04-2812-Pulse and 24-Pulse Phase-Shifting Transform
- 2026-04-27Oil-Immersed Transformers for Industrial Plant
- 2026-04-25Why Dry-Type Transformers Are Preferred for Ho
- 2026-04-24Enclosed Transformer Outdoor Solutions: IP Pro



