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Fire Resistant UPGM203 Polyester Resin Fiberglass Plate Sheet

Minimum Order Quantity : 100KG Price : 3-4 USD
Packaging Details : carton and pallet Delivery Time : 3-5 DAYS
Payment Terms : L/C, T/T, Western Union Supply Ability : 3600 TONS PER YEAR
Place of Origin: CHINA Certification: UL/EN45545/ROHS/REACH

Detail Information

Arc Resistance: 184 Seconds Fire Inflaming Retarding: UL94-V0
CTI: 600 Color: Red And White
Material: Glass Fiber And Polyester Resin
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UPGM203 Fiberglass Plate Sheet


Polyester Resin Fiberglass Plate Sheet


Fire Resistant GPO3 Fiberglass Sheet

Product Description

Made in China UPGM203 material with EN45545 and UL certificate



UPGM203 introduction 

UPGM203 Sheet also known as GPO-3, in NEMA grade we called it GPO-3 but in IEC grade we call it UPGM203 . Product composition of it is glass fiber and polyester resin . It is alkali-free fiberglass mat coated with unsaturated polyester resin as the basic material , then pressed under high temperature into rigid sheet as insulation sheet. It has good electrical property under high humidity and high mechanical property under medium temperature. In other way , it has fine fire retardant property and meet UL94-V0 , good arc resistance (arc resistance meet 184 second) and tracking resistance (CTI600) . It's widely used in the low voltage electrical industries such as making of insulating supports, bus bar supports and mounting panels in switch-gear , top cover and bottom cover in transformer .


Fire Resistant UPGM203 Polyester Resin Fiberglass Plate Sheet 0

UPGM203 features 

1.It is halogen free material , very few effect to human body .

2.Good impact resistance on mechanical and electrical

3.Good machining properties, it can be punched, drilled, machined and cutting .

4. UL certification

5. ROHS and REACH certified once a year

6.It is fire resistance material , it meet requirement of UL94 V-0 standard

7.With very nice Comparative Tracking Index , it meet CTI≥ 600

8.Excellent heat resistance ,temperature meet 155℃

9.Excellent arc resistance ,it can meet 184 second

Hong Cheng Grade HC-GPO3
IEC 893 / EN 60893 Grade UP GM 203
DIN 7735 Grade HM 2471
Items Test Method Unit Typical Values
Physical Properties Color Visual inspection ---- Red/White/Brown/Grey
Specific Gravity IEC 60893-2:2003 g/cm3 1.95-2.05
Water absorption ISO62:2008 % ≤0.5
Mechanical properties Tensile Strength IEC 60893-2:2003 Mpa ≥130
Compressive strength IEC 60893-2:2003 ≥300
Flexural Strength IEC 60893-2:2003 ≥180
Impact strength IEC 60893-2:2003 KJ/m2 ≥60
Electrical properties Volume Resistivity IEC 60093:1980 Ω·m ≥ 1.0 x 1010
Surface Resistivity IEC 60093:1980 Ω ≥ 1.0 x 1012
Electric Strength ┴ IEC 60893-2:2003 kV/mm ≥ 12
Breakdown Voltage // IEC 60893-2:2003 kV/25mm ≥ 80
Arc Resistance IEC 61621:1997 sec ≥180
PTI Proof Tracking Index PTI IEC 60893-2:2003 --- ≥600
Dielectric Constant IEC 60893-2:2003 --- 4.0-5.0
tgδ Dissipation Factor IEC 60893-2:2003 --- ≤0.03
Thermal properties Coefficient of Thermal Expansion ASTME 228-11 1/K ≤2x10-5
Temperature Index IEC 60085:2004 155
Flame Resistance performance Oxygen Index ISO 4589-2:1996 %O2 ≥ 30
Flame Resistance IEC 60893-2:2003 --- V-0
Toxicant(Emission halogen etc.) E662 ---



Other properties The anti microbial properties of bacteria G21-G22

UPGM203 Application 

With the development of the society and technology , more and more electrical equipment widely used in every field .

GPO-3 is also used in more and more electrical products such as UPS/inverter/Switchgear and etc.

We would like to share some field which GPO-3 material used as following :

1.Bus bar in Switchgear

2.Insulation support in low voltage inverter

3.Insulating sheet in uninterruptible power supply

4.Top and bottom cover in transformer

5.arc extinction in breaker

6.air gap in electric motor

Fire Resistant UPGM203 Polyester Resin Fiberglass Plate Sheet 1

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