Specifications

6640 NMN NOMEX PAPER / polyester film / nomex paper insulation paper Temp class: F (155)

6640NMM NOMEX PAPER

6640 composite material is made of two layer of du pont nomex paper with one of polyester film

Class F insulation ( 155)

Excellent heat resistance, dielectric property and mechanical strength good cutting and overhead resistance, high stiffness good compatibility with insulation varnish.

As slot, interturn and liner insulation, F - grade motor and electric appliances.

NMN: 0.15MM-0.40MM form: rolls

Width 914mm, sheets strips (width5mm)

Number	Index		Unit	Standard	Test Result
1	Norminal thickness		mm	0.25±0.030	0.27
2	Norminal Grammage		g/m2	300±45	320
3	Tensile Strength	MD(no bending) MD(after bending) CD(no bending) CD(after bending)	N/10mm	≥190 ≥170 ≥170 ≥130	220 190 200 160
4	Elongation	MD(no bending) CD(no bending)	%	≥15 ≥20	20 25
5	Breakdown Voltage		KV	≥12	15
6	Average Coherence		/	No delamination	Approval
7	Thermal Coherence(155±2)°C10Mintues		/	No blister,nodelamination,no adhensive flow	Approval
8	Color			White(yellow in middle)