Bulk Transformer Insulation Paper Supplier

Epoxy Resin Prepreg DMD Transformer Insulation Paper

Epoxy Resin Prepreg DMD Transformer Insulation Paper

Epoxy-resin Prepreg DMD is a three-layer flexible material, F-class adhesive to adhere the two faces of high-melt-point polyester film (Mylar) with hot rolling non-woven polyester fabric (Dacron), then impregnating into heat-resistant epoxy resin, and then cured to B-stage. DMD-P is for short

color：

red

Free sample：

Thermal Class：

F 155℃/H 180℃

Available width：

1000mm/customized

Thickness：

0.15 - 0.40mm

Quantity

Description
Application
Related Product

Epoxy Resin Prepreg DMD Transformer Paper

Polyester film with Non-woven fabric

In accordance with GB/T5591.3.1-2008

Description:

Epoxy-resin Prepreg DMD is a three-layer flexible material, produced by impregnating F-class DMD combined material into heat-resistant epoxy resin, and then cured to B-stage. DMD-P is for short, it is made of DMD coated with F-class modified epoxy resin in semi-solidified state by heating. It can quickly solidify at a certain temperature and adhere firmly to copper foil, and thus form insulation structure layer with much lower shrinkage.

Advantage:

It has comparatively good heat-resistance, sound dielectrically property and mechanical property. It is compatible with most gels, resins and varnishes. When cured to C-stage in moderate temperature, it will firmly adhere on the surfaces of copper or aluminum metals, without producing any small molecular volatiles.

Application：

The DMD-P is suitable for layer insulation of copper foil or aluminums foil on low-tension coils of dry-type transformers as well as suitable for transformer barrier tube, slot and turn-to-turn insulation of B-class and F-class motors and electrical appliances.

Epoxy Resin Prepreg DMD paper is a kind of composite transformer insulation paper. Its thermal class is 155℃, so it is class f transformer paper insulation.

To meet the market demand for the DM insulation series, we use polyester film and non-woven polyester fabric as raw materials to produce DM, DMD, and other composite transformer papers. DMD products have excellent mechanical properties and chemical resistance with F thermal class.

To produce high-quality prepreg DMD insulating paper, in addition to the introduction of advanced production equipment, our factory is also equipped with leading ventilation and dust removal facilities to reduce moisture and dust and ensure that the product is dry and clean.

These insulating papers have both quality and price advantages because they originate from factories. If you are tired of running around looking for the right product, Hechin is your best choice because we provide reliable custom service and high-quality personalized purchases.

Besides great products, we have unique advantages on company and factory. We are partners of many large and well-known brands, and 80% of our products are exported overseas.

Contact us today for a value quotation about DMD transformer insulation paper!

﹥﹥1 DMD-P Technical Data

Nominal Thickness	Tolerance	Nominal Grammage	Tensile Strength		Soluble Resin Content	Volatile Content	Breakdown Voltage room Temp	Bond Strength
Nominal Thickness	Tolerance	Nominal Grammage	MD	TD	Soluble Resin Content	Volatile Content	Breakdown Voltage room Temp	Bond Strength
mm	mm	（g/m²）	（N/10mm）		（g/㎡）	（%）	（kv/mm）	（kpa）
0.13	±0.02	145±20	≥50	≥40	≥45	≤1.5	≥4	≥450
0.16	±0.02	170±24	≥70	≥60			≥7
0.18	±0.02	200±28	≥70	≥60			≥7
0.2	±0.03	235±32	≥80	≥70			≥8
0.23	±0.03	260±36	≥90	≥80			≥8
0.25	±0.03	310±42	≥100	≥90			≥10
0.3	±0.03	350±47	≥110	≥100			≥12
0.35	±0.03	390±51	≥200	≥180			≥15
0.4	±0.04	470±59	≥230	≥200			≥18
0.5	±0.05	625±67	≥300	≥250			≥20
0.7	±0.07	885±67	≥320	≥280			≥20
1	±0.1	1120±67	≥350	≥300			≥25
1.1	±0.1	1120±70	≥350	≥300			≥25

﹥﹥2 Test and stock
2.1 Standard: GB/T5591.3.1-2008.
2.2 Storage: ≤30℃, dry, clean in warehouse. Avoid fire, heat and sunlight.
2.3 Storage life: 6 months. Still effective if qualified in retest after 6 months.

Prepreg DMD Features:

It is Class F insulating material
Has long shelf life at room temperature
low precuring temperature and time
Excellent electrical insulation, bonding and heat-resistant properties

DMD Application

DMD packing:

Why choose us:

Factory Direct Sales
High quality epoxy resin
Good bonding strength after curing

FAQ:
Q1:What is the payment term?
A: 100% T/T or 30% in advance, balance before loading.

Q2:What is the shipping port?
A:Shanghai Port, Ningbo Port

Q3:What is the delivery time?
A: 10 ~ 25 working days depend on orders

Q4:What is the quality level of your product?
A: International Standard - IEC

Q5. Are you factory or a trading company ?
A: Factory, We have more than 17 years experience in producing insulation materials

Q6: when did you found ?
A: In 2005

Q7: How many employee in your company ?
A: Around 50~100

Q8: Where is your factory located? How can I visit there?
A: Our factory is located in YongKang, Zhejiang provience.

Q9: Which Diamond dotted paper DDP certification do you have?
The plant has passed the certificate of ISO 9001 quality system certification;
The insulation system has been got SDS Report

Q10: Can I get samples for free?
A: yes sure, free samples, customer pay shipping.

Q11:What are your main products?

A:For oil immersed transformers,like Diamond dotted paper/DDP, Crepe paper tube, pressboard and so on.
For dry type transformers, like Class F DMD, NMN, NHN and so on.
For electrical motors, like Polyester film, DMD, NMN, NHN Fish paper with polyester film, PMP and so on.

Application：

The DMD-P is suitable for layer insulation of copper foil or aluminums foil on low-tension coils of dry-type transformers as well as suitable for transformer barrier tube, slot and turn-to-turn insulation of B-class and F-class motors and electrical appliances.

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