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Home > Electrical & Electronics > Insulation > Insulation Sheet > GPO-3 / UPGM203 UNSATURATED POLYESTER GLASS MAT SHEET (HM2471)

GPO-3 / UPGM203 UNSATURATED POLYESTER GLASS MAT SHEET (HM2471)

GPO-3 / UPGM203 UNSATURATED POLYESTER GLASS MAT SHEET (HM2471) thumbnail-3

GPO-3 / UPGM203 UNSATURATED POLYESTER GLASS MAT SHEET (HM2471) thumbnail-4

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GPO-3 / UPGM203 UNSATURATED POLYESTER GLASS MAT SHEET (HM2471) photo-3

GPO-3 / UPGM203 UNSATURATED POLYESTER GLASS MAT SHEET (HM2471) photo-4

Product Spotlights

GPO-3 / UPGM203 (HM2471) unsaturated polyester glass mat sheet features high mechanical strength and impact resistance, excellent electrical insulation, good thermal stability, low moisture absorption, and strong wear resistance for electrical and mechanical applications.

Negotiable MOQ: 500 Kilograms (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Glassfiber+Unsaturated Polyester

Thickness:

15 mm

Color:

Red

Contact Supplier Request Quote Chat Now

Qingdao Yilong Insulation Material Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao, Ningbo, Shanghai, Tianjin

Delivery Detail:

30 days

Product Details
Company Profile
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Material Other, Glassfiber+Unsaturated Polyester

Thickness 15 mm

Color Red

Application Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Medical Equipment, Transportation

Thermal Rating F 155

Transport Package Pallet or Wooden Case

Specification 1010*2020, 1250*2500, 1300*2600, 520*520 mm

Trademark YILONG

Origin China

Description

GPO-3 / UPGM203 / HM2471 Polyester Fiber Sheets are high-strength polyester fiber-based laminates designed for electrical insulation and mechanical applications. Engineered from high-quality polyester fiber and resin, these sheets provide excellent dielectric properties, thermal stability, and impact resistance, ensuring reliable performance in demanding industrial and electrical environments. They maintain electrical insulation under high voltage, offer superior thermal resistance, and exhibit low moisture absorption, making them suitable for varied temperature and humidity conditions. Mechanically, GPO-3 sheets resist impact, wear, and abrasion, combining electrical reliability with physical durability.

Features

High mechanical strength and impact resistance

Excellent dielectric properties and electrical insulation under high voltage

Superior thermal stability for high-temperature applications

Low moisture absorption for humid or fluctuating environments

Wear and abrasion resistant, durable for mechanical applications

Robust combination of electrical and mechanical performance

Applications

Electrical insulation components in transformers and switchgear

Mechanical parts requiring both strength and electrical insulation

High-voltage electrical circuits and devices

Industrial machinery and equipment exposed to heat, wear, or humidity

Environments requiring durable, long-lasting insulating materials

GPO-3 / UPGM203 / HM2471 UNSATURATED POLYESTER GLASS MAT SHEET
No	Inspection Item	Unit	Test Result	Test Method
1	Tensile strength	MPa	132	ASTM D638-03
2	Elastic modulus of tensile	MPa	1.03×104
3	Flexural strength	MPa	215	ASTM D790-03
4	Vertical compressive strength	MPa	227	ASTM D695-02a
5	Vertical electrical strength,in the normal oil, fast boost	MV/m	20.7	ASTM D149-97a
6	Vertical layer to flashover voltage, in the air, fast boost	KV	27	-
7	Parallel layer breakdown voltage, in the normal oil, fast boost	KV	79	-
8	Arc resistance	s	184	ASTM D495-99
9	Compared to the electric mark index	—	CTI600	UL746A
10	Insulation resistance	Ω	6.1×1013	ASTM D257-99
11	Flame retardant	grade	V-0	UL94:2006
12	Oxygen index	%	44.7	ASTM D2863-10
13	Oxygen index	%	0.13	ASTM D570-98
14	Density	g/cm3	1.83	ASTM D792-00
15	Coefficient of thermal expansion (20℃ -100℃) Parallel layer	10-6/℃	9.6	ASTM D696-03
16	Thermal conductivity （60℃）	W/m·K	0.652	ASTM D518-10
17	Thermal denaturation temperature（Tm1.8）	℃	≥155	ISO 75-1:2004
Remarks： 1.Test specimen thickness for (1.66-1.74)mm of the fifth "vertical electrical strength" test. 2.Test specimen thickness for (2.07-2.15)mm of the sixth "Vertical layer to flashover voltage" test.