Class H EPGC308 Halogen-free fire retardant Epoxy glass fiber laminated sheet

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Customized service
We professional in develop and manufacture various kinds of epoxy fiberglass laminated insulating sheets over 20years. Our products are confirmed and used by many famous company in our industry, and we have got very good reputation.The performance, color and finish of the sheet can be adjusted according to the customer’s product application,and we can offer CNC machining service

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Product Description

This product is a laminated product which made with the chemical treatment electrical purposed alkali-free glass cloth as the backing material,by hot pressing with high Tg epoxy resin as binder.It has high mechanical strength under high temperature,with good electrical stability under high humidity.The thermostability is grade F,and it is Halogen-free fire retardant suitable for all kinds of motor, electric appliances,electronic and other fields.

Features

1.Good electrical stability under high humidity;
2.High mechanical strength under high temperature,
the mechanical strength retention rate≥50% under 180℃;
3.Moisture resistance;
4.Heat resistance;
5.Temperature resistance:Grade H
6.Halogen-free and fire retardant

Compliance with standards

In accordance with GB/T 1303.4-2009 electrical thermosetting resin industrial hard laminates - Part 4: epoxy resin hard laminates.

Appearance: the surface should be flat, free of bubbles, pits and wrinkles, but other defects that do not affect the use are allowed, such as: scratches, indentation, stains and a few spots.The edge shall be cut neatly, and the end face shall not be delaminated and cracked.

Application

Suitable for all kinds of motor, electric appliances,electronic and other fields.

Main Performance Index

NO.	ITEM			UNIT	INDEX VALUE
1	Density			g/cm³	1.8-2.0
2	Water absorption Rate			%	≤0.5
3	Vertical bending strength	Normal	Lengthway	MPa	≥450
			Horizontal		≥380
		180±5℃	Lengthway		≥250
			Horizontal		≥190
4	Impact strength (charpy type)	No gap	Lengthway	KJ/m²	≥180
			Horizontal		≥137
5	Compression strength		Lengthway	MPa	≥500
			Horizontal		≥250
6	Tensile strength		Lengthway	MPa	≥320
			Horizontal		≥300
7	Bonding strength			N	≥7200
8	Vertical electric strength （in oil of 90℃±2℃）		1mm	KV/mm	≥17.0
			2mm		≥14.9
			3mm		≥13.8
9	Parallel breakdown voltage(1 min in oil of 90℃±2℃）			KV	≥40
10	Dielectric dissiption factor（50Hz)			-	≤0.04
11	Parrallel Insulation Resistance		Normal	Ω	≥1.0×1012
12	Combustibility（UL-94)			Level	V-0