6640 NMN Flexible Laminate high quanlity transformer electrical insulation paper is a three-layer flexible laminate in which Du Pont Nomex paper is bonded to the two sides of polyester film.   We also call it transformer insulation paper, motor insulation paper, high quality insulation paper or top grade electrical insulation paper.   Features and Applications of 6640 NMN Flexible Laminate motor, transformer or other Electrical appliances electrical Insulation Paper.
- Insulation class F (155oC)
- Excellent Heat Resistance, dielectric property and Mechanical Strength.
- Good cutting and overload resistance, high stiffness. Good compatibility with insulation varnish.
- As slot, interturn and liner insulation for F-grade motor and electric appliances.     Available of 6640 NMN Flexible Laminate motor, transformer or other Electrical appliances Electrical Insulation Paper: In rolls, in sheets, in strips.   Please see the below technical data of 6640 NMN Flexible Laminate Electrical Insulation paper.    

Properties			Units	Values
Nominal thickness			mm	0.15	0.18	0.20	0.23	0.25	0.3	0.35
Thickness tolerance			mm	±0.02		±0.03			±0.04
Grammage and tolerance			g/m2	180±25	210±30	240±30	260±35	300±40	350±50	430±50
Tensile strength	MD	No bending	N/50mm	≥150	≥160	≥180	≥200	≥220	≥270	≥320
		After bending		≥80	≥110	≥130	≥150	≥180	≥200	≥250
	TD	No bending		≥90	≥110	≥130	≥150	≥180	≥200	≥250
		After bending		≥70	≥90	≥110	≥130	≥150	≥170	≥200
Elongation		MD	%	≥10		≥12
		TD		≥15		≥18
Breakdown voltage		No bending	kV	≥7	≥10	≥11	≥12	≥13	≥15	≥20
		After bending		≥6	≥8	≥9	≥10	≥12	≥13	≥16
Bonding property  at room temp.			/	No delamination
Bonding property at 180°C±2°C 10min			/	No delamination, no bubble, no adhesive flow
Temp. index of heat-resistance in a long term (TI)			/	≥155
The quality warranty period			Twelve months