High quanlity transformer, motor Flexible insulating paper for transformer is a TWO- LAYER or three-layer flexible laminate in which Du Pont Nomex paper or nonwoven fabric is bonded to the one or two sides of polyester film or Polyimide film.   We also call it transformer insulating paper for transformer, motor insulation paper, high quality insulation paper or top grade insulating paper for transformer.   Features and Applications of motor, transformer or other Electrical appliancesMULTI-LAYER INSULATION MATERIALS
- Insulation class E - H (120 - 180 CENTIGRADE)
- 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 motor, transformer or other Electrical appliances : In rolls, in sheets, in strips.   Please see the below technical data of one MULTI-LAYER INSULATION MATERIALS .    

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