Contact Us

Contact Person : Leo.Liu

Phone Number : 0086-18150169195

Free call

H - Class Epoxy Fiberglass Sheet With Compressive Strength And Flexural Strength

Packaging Details : plywood pallet/cartons/ plywood crate pakcing Delivery Time : 1-3 work days
Payment Terms : T/T Supply Ability : 300 pieces per day
Place of Origin: China Brand Name: Hongcheng
Certification: SGS/RoHS/Reach/UL Model Number: EPGC204/ FR5

Detail Information

Product Name: FR5 Product Color: White/Light Green
Density: 2.1g/cm3 Heat Resistance: 180℃(Class H)
Water Absorption: <0.3% Electric Strength⊥: ≥13KV
Breakdown Voltage∥: >60KV
High Light:

fiberglass resin sheets


epoxy glass fibre sheet

Product Description

 FR5 epoxy sheet(H-class) with compressive strength and flexural strength / FR5 sheet with high strength

Product Name: FR-5(H)epoxy sheet
IEC Standard EPGC204
NEMA Standard FR-5
German Standard Hgw2372.4
Product Color: White
Product Thickness: 0.2mm-80.0mm
Product Size:: 1020*1220;

Product Description:

FR-5 (H Class)white epoxy glass fiber cloth laminated sheet series are the high temperature resistant rigid plate insulating materials joint developed by ISOLA Taiwan and our company. 



1. High-voltage motor and electrical equipment as insulating structure: high-tension switch cubible,transformer,frequency changer,Converter,DC motor,AC contactor

2. Switch cubicle:bursting disk,lining plate,arc extinguishing chamber,arcing cylinder,arcing piece,flash barrier,wiring board,terminal plat insulating supports

3. Strut member and bus bar supports


  1. High temperature resistance more than 180℃
  2. Excellent Fire Retardant(UL 94 V-0 Grade)
  3. Excellent Voltage Resistance(electric strength ≥16KV/mm)
  4. Excellent Water Resistance(Water absorption ≤0.2%)
  5. Excellent Heat Resistance(Class F)
  6. Excellent thermal impact resistance(Temp.Index:-273℃ to +180℃)
  7. Excellent mechanical processability &high degree of automation processing
  8. RoHS,Reach Certified products

Hong Cheng Grade HC-FR-5
IEC 893/EN 60893 Grade EPGC 204
DIN 7735 Hgw2372.4
Item Test method Unit Typical values
Physical properties color Visual inspection White
Specific gravity IEC 60893-2:2003 g/cmP3P 1.90 - 2.15
Water absorption ISO 62:2008 % <0.3
Electrical properties Electric strength⊥ IEC 60893-2:2003 KV/mm ≥ 14(3.0mm)
breakdown voltage∥ IEC 60893-2:2003 KV ≥ 60
Volume resistivity IEC 60093:1980 Ω.m ≥ 1.0×10P12
Surface resistivity IEC 60093:1980 Ω ≥ 1.0×10P14
(1 MHZ) Dielectric constant IEC 60893-2:2003 4.0-5.5
(1MHZ)Dissipation factor IEC 60893-2:2003 0.04-0.05
PTI Proof Tracking Index PTI IEC 60893-2:2003 V ≥ 200
24H IEC 60893-2:2003 Ω ≥ 5×10P10P
Insulation resistance after immersion 24Hre in water
Mechanical properties Flexural strength⊥ IEC 60893-3-4:2003 MPa ≥ 340
Charpy Impact strength∥ IEC 60893-2:2003 KJ/mP2P ≥60
Tensile Strength IEC 6089-2:2003 MPa ≥300
Bond strength IEC 60893-3-4:2003 N ≥8000
Compressive strength ⊥ IEC 60893-2:2003 MPa ≥ 350
Flame resistance properties Flame resistance IEC 60893-2:2003 V-0
Temperature index IEC 60085:2004 180
Toxicant content E662 Low
Other Acetone resistance Boiled Min 30(OK)

Epoxy sheet are widely used in every kinds of switch cubicle such as bursting disk, arc extinguishing chamber, arcing cylinder, arcing piece, flash barrier, wiring board, terminal plate insulating supports; strut parts and bus bar supports in switchgear & transformer; the armature parts of electrical machine such as cover plate, slot wedge, stator , gasket , shims ,carbon brush etc. The epoxy glass fiber laminated sheet series are used much more extensively in consumer electronics, panel display and photovoltaic in recent years.

H - Class Epoxy Fiberglass Sheet With Compressive Strength And Flexural Strength 0

Methods: CNC machining
Application: Material thickness 0.5-100mm, machining tolerance according to the ISO 2768-M
Advantages: 1.Proficient in advanced programming software, such as: Mcam9.1, UG software programming , to meet the requirements of machining on complex surface;

2.We have a senior R&D engineers team and the team have the ability in designing the fixture independently to meet production requirements of high quality , high yield and lower cost.

3.To meet the customers’ requirements , company owned dozens of high-precision CNC equipments to short the delivery time .

4.The company have dozens of No.850&No.650 CNC machining center (with tool storage) , these machines can be used to complete multistep processes of complex parts at one-time.

5.The company owned several Large gantry CNC machines in 1000*1200mm , large panel parts can be completed at one-time by high-precision processing and avoid deviation from machining.



You Might Be Into These
Get in touch with us

Enter Your Message