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Three-layer composite: Non-woven cloth/ Polyester film/Non-woven cloth
Standard:IEC60626-3:2002,GB/5591.3-2008
Width: 10-1000mm
Thickness: 0.09/0.15/0.2/0.25 /0.3/0.35/0.4/0.45mm
Heat resistance: B(130°C) / ClassF (155 °C)
Breakdown voltage:≥19KV
Color: white / pink/Blue/green
Application: Motor,Transformer
DMD Composite Material is a flexible laminated insulating material composed of three layers. The outer layers are made of polyester non-woven fabric, while the inner layer is a polyester film. It features excellent thermal resistance, dielectric performance, mechanical strength, and good impregnation capability.
It is widely used in Class F motors and transformers, serving as motor slot insulation, transformer interphase insulation, and liner insulation.
Thermal Class: Generally available in Class B (130°C) and Class F (155°C) standards.
Dielectric Strength: Offers superior electrical insulation and breakdown voltage resistance.
Mechanical Properties: High tensile strength, tear resistance, and good stiffness, making it suitable for automatic insertion processes.
Impregnation: The non-woven fabric surface allows for excellent saturation with insulating resins or varnishes.
Motors: Used for slot insulation, phase-to-phase insulation, and turn-to-turn insulation.
Transformers: Used for interlayer and end-insulation in dry-type transformers.
Electronics: Serving as gaskets or liners in various electrical components.
1.Factory: We operate a professional electrical insulation materials manufacturing facility and are ISO-certified.
2.Fully Automated Production: Our advanced automated workshop is supported by a strict and comprehensive quality management system.
3.Quality Inspection: Equipped with four major laboratories and five core product performance testing capabilities.
4.Processing Services: We provide customized processing solutions based on your requirements, ensuring high quality and on-time delivery.
5.Product Certification: Our products comply with UL, SGS, RoHS, and REACH standards. Sample testing is available upon request.
6.Ready Stock Supply: Standard products can be delivered within 7–15 days.
Our company is certified to ISO 9001, ISO 14001, and ISO 45001 management systems. Our products also comply with international certifications and reports including UL, RoHS, REACH, MSDS, CEMT, as well as factory inspection and test reports provided before shipment.
| NO. | Item | Unit | Index | |||||||
| 1 | Nominal thickness | mm | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | ||
| 2 | Thickness tolerance | mm | ±0.020 | ±0.030 | ±0.030 | ±0.035 | ±0.040 | ±0.040 | ||
| 3 | Nominal weight and tolerance | g /m2 | 150±22 | 220±32 | 260±39 | 310±46 | 390±58 | 440±66 | ||
| 4 | Tensile strength | MD | No bend | N /10mm | ≥80 | ≥120 | ≥150 | ≥170 | ≥200 | ≥300 |
| Bending | ≥80 | ≥105 | ≥130 | ≥150 | ≥180 | ≥220 | ||||
| CD | No bend | ≥80 | ≥105 | ≥130 | ≥150 | ≥180 | ≥220 | |||
| Bending | ≥70 | ≥95 | ≥120 | ≥130 | ≥160 | ≥200 | ||||
| 5 | Elongation | MD | % | ≥10 | ≥5 | |||||
| CD | ≥15 | ≥5 | ||||||||
| 6 | Breakdown voltage | Normal | kV | ≥7.0 | ≥9.0 | ≥11.0 | ≥13.0 | ≥15.0 | ≥18.0 | |
| 155±2℃ | ≥6.0 | ≥8.0 | ≥10.0 | ≥12.0 | ≥14.0 | ≥17.0 | ||||
| 7 | Strength | MD | N | ≥20 | ||||||
| CD | ≥30 | |||||||||
| 8 | Normal adhesion | – | No delamination | |||||||
| 9 | Thermal adhesion （180±2℃ 10mim） | – | No delamination, no foaming, no glue flow | |||||||
| 10 | Adhesion after moisture | – | No delamination | |||||||
| 11 | Long-term heat resistance index/ Temperature index （TI） | ℃ | ≥155 | |||||||
NOTE:The data reflected in the above tables are typical or average values only and just for your reference in practical application, which do not assume any responsibility for the use of the product or any legal liability arising therefrom.
