DuPont Mylar Nomex Insulation Paper Nmn 6640
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Product Highlights
- Triple Layer Insulation: NMN structure with polyester film and DuPont Nomex paper for superior thermal and dielectric performance.
- Wide Thickness Range: Available in thicknesses from 0.13mm to 0.5mm to suit various insulation needs.
- Versatile Applications: Ideal for layer insulation in dry-type transformers and slot/turn-to-turn insulation in motors.
- Full Customization: Offers customization from samples, designs, and full customization options.
- 100% Quality Inspection: Finished products undergo 100% visual and functional inspection for guaranteed quality.
- Fast Sample Delivery: Non-custom samples are free and delivered within 48 hours.
Product Attributes
- Customization
- Available
- Application
- Automotive Manufacturing
- Color
- White
- Model NO.
- NMN-YD
- Material
- Insulation Paper
- Maximum Voltage
- 10KV~19KV
- Thermal Rating
- F 155
- Thickness
- 0.13-0.5mm
- UV Protection
- No
- Rated Voltage
- 8.0-11kv
- Tensile Strength
- Excellent
- Product Name
- Nmn DuPont Nomex Mylar Insulation Paper 6640
- Form
- Roll, Sheet, Strip
- Trademark
- YouDa
- Origin
- Liaoning, China
Product Images of DuPont Mylar Nomex Insulation Paper Nmn 6640
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Product Description
Product descriptions from the supplier
1.Product Description:
NMN (Nomex paper/Polyester film/Nomex paper)is a Triple layer electrical insulation material of thermal class F155ºC, consisting of polyester film covered with Du Pont Nomex paper. The polyester film giving the product mechanical and dielectric features, while the Du Pont Nomex paper gives the thermal resistance.This NMN has excellent electrical.mechanical,and impregnating properties.
2.Product Aplication:
|
Item |
Property |
Unit |
Index |
|||||
|
1 |
Thickness |
mm |
0.15 |
0.18 |
0.20 |
0.25 |
0.30 |
0.40 |
|
2 |
Tolerance |
mm |
±0.02 |
±0.03 |
±0.04 |
|||
|
3 |
Tensile Strength MD,Not Bended |
N/10mm |
≥70 |
≥80 |
≥100 |
|||
|
4 |
Soluble Resin Content |
g/m2 |
≥45 |
|||||
|
5 |
Volatile Content |
% |
≤1.5 |
|||||
|
6 |
BDV |
kv |
≥8.0 |
≥9.0 |
≥11 |
|||
|
7 |
Tensile Shear Strength |
MPa |
≥3.0 |
|||||
|
8 |
Temperature Index |
- |
≥155 |
|||||
|
Curing Time:130ºC 5h;140ºC4h;150ºC 3h. |
||||||||

Shenyang Youda Insulation Materials - Insulation Material Specialist for supporting Transformer and Electric machinery. Shenyang Youda Insulation Materials Co., Ltd. was founded in 1990, private high-tech enterprise with R&D, production, sales, and exporting.
Our company is specialized in producing, processing, selling different kinds of insulation materials, such as laminated boards, bars, tubes, molded products, composite materials, dipping materials, insulating paper, insulating ribbon, insulation varnish, mica products, engineering plastics. Our products are widely used for transformer, electric machinery, mutual inductor, electric reactor, heavy industry machinery, mine, railway, aerospace and so on.
Our company takes the core value of technology - leading, supreme customers, honesty and trustworthiness. Safety production, quality guaranteed, eco-friendly material is our promise. All the staff in Youda will provide high-quality products and best service for domestic and abroad customers through our exquisite technology and our best work style.




(1). Q: Can you give me a discount price?
A: It is depending on the volume.
(2). Q: Why is your price higher than other suppliers?
A: We can offer the products of different quality levels depends on customer's target price and quality requirement.
(3). Q: How can I get a sample?
A: Non custom samples are free of charge. You only pay for the goods. We promise to deliver the sample within 48 hours.
(4). Q: How can you guarantee the quality of mass production is same with the sample sent to me before?
A: Our process will base on the samples which is the same as yours.
(5).How do I know the progress of my product?
Production department upload production schedule every day, you only need to consult the customer service staff.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASI2491238". Items marked "" are certified.
Company Profile
Shenyang YouDa Trading Import & Export Co., Ltd. Your Ideal Partner for Global Electrical Safety
Since 1990, Shenyang YouDa Trading Import & Export Co., Ltd. Has been committed to advancing innovation and safety in the global electrical industry. With over three decades of expertise, we are not only a trusted manufacturer of insulation materials but also a driving force in building a safer electrical future worldwide.
1. Insulation Materials - The Core of Electrical SafetyAs a comprehensive enterprise integrating R&D, manufacturing, and exports, Shenyang YouDa has established itself as a leader in insulation solutions.
Our extensive product portfolio includes:
Rigid laminated insulation boards, rods, and tubes
(Epoxy board, epoxy tube, epoxy rod, fiberglass board, fiberglass rod, fiberglass tube, phenolic cloth board, phenolic cloth rod, phenolic cloth tube, etc. )
Flexible insulation papers and composites
(AMA, DMD, AHA, NHN, polyester film, polyimide film, etc. )
High-performance mica products with outstanding heat resistance and dielectric strength
Every product is designed to provide reliable protection for transformers, motors, generators, and high-voltage equipment. With strict quality control and advanced processing capabilities, we ensure that every detail meets the highest standards of electrical safety.
2. Engineering Plastics - Strength and Reliability in Harsh EnvironmentsIn industries where durability is essential, Shenyang YouDa delivers advanced engineering plastics that withstand extreme operating conditions. Our products feature:
High-temperature resistance
Superior mechanical strength
Excellent corrosion protection
(PP Board, PC Board, PVC Boards, Acrylic , etc. )
These materials are widely applied in heavy machinery, mining, rail transportation, renewable energy, and even aerospace sectors - guaranteeing long-term stability and performance where reliability cannot be compromised.
3. Transformer Coolers - Precision and EfficiencyWith state-of-the-art automated welding technology and modern production lines, our transformer coolers offer outstanding efficiency and flexibility.
Key features include:
Annual production capacity exceeding 6, 000 tons
Fin widths of 520mm, 480mm, and 310mm
Customizable pitch distances from 500mm to 4000mm
These innovations ensure that we can provide tailored cooling solutions to meet the diverse needs of transformer manufacturers worldwide.
Global Reach, Shared SuccessShenyang YouDa's products and solutions are trusted across multiple industries - from power systems and renewable energy to automation, transportation, and aerospace. Guided by the principle of safety through innovation, we stand as a reliable partner for companies seeking world-class insulation and electrical protection solutions.
In today's interconnected world, we warmly welcome international partners to join us in forging a secure electrical future. With professional services, exceptional products, and a spirit of collaboration, Shenyang YouDa Trading Import & Export Co., Ltd. is ready to grow and prosper together with you.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- Shenyang, Liaoning, China
-
Plant Area
- 150 square meters
-
Number of Employees
- 28
-
Registered Capital
- 1,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Dalian Port
-
Minimum Order Quantity
- 1
-
Supply Chain Partners
- 20
Our Production Capability & Technical Expertise
-
Main Products
- Transformer Radiator, Insulation Paper, Insulation Sheet, Electrical Insulation Paper, Insulation Films, Fish Paper, DDP Paper
-
Production Lines
- 1
-
Production Machines
- Sculpture Machine, Cutting Machine
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instruction but no written records
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization
-
OEM Service Available
- Yes
-
R&D Engineers
- 5 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2019-12-16
-
Export Year
- 5 Years
-
Main Markets
- Africa, East Asia(Japan/ South Korea)
-
Repeat Buyers Choice
- 80%~100%
-
Number of Foreign Trading Staff
- 4
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Can I get a discount?
- Discounts depend on the order volume.
- Why is your price higher than other suppliers?
- We offer products of different quality levels based on your target price and quality requirements.
- How can I get a sample?
- Non-custom samples are free of charge; you only pay for shipping. We deliver samples within 48 hours.
- How do you guarantee mass production quality matches the sample?
- Our production process is based on the samples provided by you to ensure consistency.
- How can I track my production progress?
- The production department uploads the schedule daily; you can consult customer service staff for updates.
- Is OEM service available?
- Yes, OEM service is available, including customization from samples, designs, and full customization.
- What is the minimum order quantity?
- The minimum order quantity is 1 unit.
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