DMD Insulation Paper- Henan YAAN Electrical Insulation Plant Co., Ltd.

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DMD Insulation Paper

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DMD Insulation Paper

Main Parameters:

Insulation class: B/F class (130°C/155 °C)

Color: Blue, green, white and pink

Width: 10-1000mm

Thickness: 0.088-0.5mm

*Can be customized

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Product Information

　　Brief introduction of the DMD insulation paper

　　DMD flexible laminates is a three-layer flexible composite material. It is made by bonding both sides of non-woven polyester fabric with polyester films with F-grade or B-grade adhesive.

　　About the Yaan Polyester Film: It is made from Polyethylene terephthalate by casting & Biaxially oriented. It is widely used for the end wrap insulation, liner insulation of electrical oils, electromagnetic wire wrap insulation, cable wrapping on motor, transformer or other electrical appliances.

　　Used for electrical insulation, DMD Composite Paper is economical and versatile. This three-layer constructions ensures the material offers good mechanical and dielectric strength while still being able to be impregnated by insulating varnishes.

　　Main features of this DMD insulation paper:

　　1. Economical type of electrical insulation material for medium temperature machines.

　　2. Made from Polyester Film with a non-woven polyester fabric on both sides.

　　3. Excellent electrical and mechanical properties with a smooth surface finish.

　　4. Available in a selection of thicknesses by the roll, linear metre or a custom cut tapes and parts.

　　About our DMD insulation paper, it is available in a selection of thicknesses. DMD’s construction ensures it provides good electrical strength. Specific breakdown voltage ratings vary depending on overall thickness, you can choose you need according the parameters on the chart：

Technical Parameters

Item		Unit	Requirement
Nominal thickness		mm	0.15	0.18	0.2	0.23	0.25	0.3	0.35	0.4	0.45
Thickness tolerance		mm	±0.02	±0.025	±0.03	±0.03	±0.03	±0.03	±0.035	±0.04	±0.045
Grammage		g/m2	140±20	190±28	220±33	260±39	300±45	350±52	425±63	500±75	560±84
Film nominal thickness		um	50	75	100	125	150	190	250	300	350
Tensile strength	MD no bending	N/10mm	≥80	≥120	≥140	≥180	≥200	≥270	≥320	≥340	≥370


	MD after bending		≥80	≥105	≥120	≥150	≥170	≥200	≥300	≥320	≥350
	TD no bending		≥80	≥105	≥120	≥150	≥170	≥200	≥300	≥320	≥350
	TD after bending		≥70	≥90	≥100	≥120	≥130	≥150	≥200	≥220	≥250
Elongation	MD no bending	%	≥15					≥5		≥5


	MD after bending		≥10					≥5		≥3
	TD no bending		≥20					≥5		≥5
	TD after bending		≥10					≥5		≥2
Breakdown voltage	No bending	KV	≥6	≥7	≥9	≥10	≥12	≥15	≥18	≥20	≥22
Delamination		—	No Delamination, no bubble or other defects
Heat affected（155±2℃） 10min			No Delamination, no bubble, no adhesive flow
Long-term heat resistance			≥130
（temperature index TI）
Weight and area conversion		m2/Kg	6.37	5.21	4.41	3.82	3.37	2.86	2.29	1.97	1.73