DMD / FPF Laminated Fleece – Fleece + Polyester

DMD-FPF Laminated Insulation Paper (Fleece + Polyester + Fleece)

DMD-FPF Laminated Insulation Paper is a flexible, three-layer electrical insulation material designed for economical and reliable insulation in low- and medium-temperature electrical equipment. It is manufactured by bonding polyester film (PET) with non-woven polyester fleece on both sides, using either F-class or B-class adhesive, resulting in a strong yet flexible composite structure.

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DMD-FPF Laminated Insulation Paper (Fleece + Polyester + Fleece)

The polyester film core provides excellent dielectric strength, while the outer non-woven polyester fleece layers enhance mechanical strength, flexibility, and varnish absorption. This construction allows DMD-FPF to be easily impregnated with insulating varnishes, improving insulation life and performance. The material offers a smooth surface finish, good cutting performance, and stable electrical properties.

DMD-FPF insulation paper is widely used in motors, generators, transformers, and electrical appliances, particularly for slot liners, phase insulation, liner insulation, and turn-to-turn insulation. Its cost-effective nature and versatile performance make it a preferred choice for low and medium voltage electrical machines.

Product Details

Product Name

DMD-FPF Laminated Insulation Paper

Construction

Non-woven Polyester Fleece + Polyester Film + Non-woven Polyester Fleece

Core Material

Polyester Film (PET)

Insulation Class

Class B / Class F (depending on adhesive)

Thickness Availability

Multiple thickness options available

Supply Form

Rolls, linear metres, custom-cut tapes and parts

Typical Applications

Slot insulation, liner insulation, inter-turn insulation

End Use Equipment

Motors, generators, transformers, electrical appliances

Technical Specifications – DMD-FPF Laminated Insulation Paper

Properties		Units	Values
Nominal Thickness		mm	0.15	0.17	0.20	0.23	0.25	0.30	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/10mm	≥80	≥120	≥140	≥180	≥190	≥270	≥320
	MD – After bending	N/10mm	≥80	≥105	≥120	≥150	≥170	≥200	≥300
	TD – No bending	N/10mm	≥80	≥105	≥120	≥150	≥170	≥200	≥300
	TD – After bending	N/10mm	≥70	≥90	≥100	≥120	≥130	≥150	≥200
Elongation	MD – No bending	%	≥15					/
	MD – After bending	%	≥10					≥5
	TD – No bending	%	≥20					/
	TD – After bending	%	≥10					≥5
Breakdown Voltage (No bending)		kV	≥6	≥7	≥9	≥10	≥12	≥15	≥18
Bonding property at room temp.		/	No delamination
Bonding property at 180±2°C, 10 min		/	No delamination, no bubble, no adhesive flow
Temperature index of long-term heat resistance (TI)		/	≥155
Quality warranty period		/	Twelve months