Dotted-adhesive DMD is a flexible composite insulating material consisting of a Class F polyester film and a polyester non-woven fabric, with a special diamond-patterned epoxy adhesive applied to the surface and cured to a B-stage. The material can be bonded through a secondary heat-curing process and offers excellent mechanical, dielectric, and adhesive properties.

Applications:
Primarily used for interlayer, interturn, and end insulation in transformers, as well as for wrapping flat copper or aluminum conductors.

Item		Unit	Value
Base material thickness		mm	0.1	0.13	0.15	0.17	0.2	0.25	0.3
Limit deviation of thickness		mm	±0.02				±0.03
Thickness of single-sided adhesive		um	5-15
Contamination of transformer oil		/	Pollution-free（△tans＜0.001）
Tensile strength without bending	longitudinal	N/10mm	60	90	≥100	≥120	≥140	≥190	≥270
	Horizontal		50	80	≥90	≥105	≥120	≥170	≥200
Elongation at break	longitudinal	%	≥15
	Horizontal		≥20
Breakdown voltage (normal conditions)		KV	4	5	6	7	9	12	15
Long-term heat resistance		/	≥155
Curing conditions			Low temperature 90±5℃，2h;high temperature 140±5℃，≥4h
Bond strength		KPa	≥350

1.Q: Are you trading company or manufacturer ? 

A: We are a manufacturer, We have more than 36 years experience in producing electrical insulation material.

2.Q: Where is your factory located? How can I visit there? 

A: Our factory is located in Xuchang,Henan provience.

3.Q: Which certification do you have?

A: The plant has passed the certificate of ISO 9001 quality system certification;
The products have passed ROHS test.

4.Q: Can i get a samples for free?

A: Of course we can sent you a sample  for free, customers just need to pay a litter shipping change.

5.Q: How long is the delivery time?

A: Generally it is 5-15 days if polyimide film price is  in stock, or it is 15-30 days.