FR4 laminate epoxy resin fabric complex machined parts from China
FR4 laminate epoxy resin fabric complex machined parts from China
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Basic Infomation
Payment & Shipping Terms
Packaging Details: PALLET
Delivery Time: 3-5 DAYS
Payment Terms: L/C, T/T, Western Union
Supply Ability: 2000TONS PER MONTH
Color: Light Green
CTI: 600
Temp. Index: F Grade
Fire Resistance: UL94-V0
Product Description

What is FR-4 ?

FR4 is a fire rated electrical-grade, dielectric fiberglass laminate epoxy resin system combined with a glass fabric substrate.

The abbreviation "FR4" means: F (for flame) and R (for retardant).

FR4 grades material offer excellent chemical resistance, flame ratings (UL94-VO) and electrical properties under dry and humid conditions. FR4 also features high flexural, impact, superior mechanical strength and bond strength at temperatures up to 155°C.

A continuous woven glass fabric laminated with an epoxy resin. This grade is extremely high in mechanical strength, has low water absorption and dissipation factors and has superior electrical characteristics, which are exhibited over a wide range of temperatures and humidities.

FR4 laminate epoxy resin fabric complex machined parts from China 0

What is the Feature of this material ?

* High mechanical & electrical strength

* Excellent rigidity & dimensional stability

* Good dielectric properties

* Low water absorption

* Flame resistance

* Tighter thickness tolerance

* Flat and straight panel

* Smooth and clean surface.

* Easy to machine

* Great properties, reinforced, smooth surface

* Stable electric insulation performance,good flatness.


Data sheet of FR4 material 

Hong Cheng Grade HC-FR-4
IEC 893/EN 60893 Grade EPGC 202
DIN 7735 Hgw2372.1
Item Test method Unit Typical Values
Physical Properties Color Visual inspection Light green / yellow
Specific Gravity IEC 60893-2:2003 g/cm3 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 ≥ 1.0×1012
Surface Resistivity IEC 60093:1980 Ω ≥ 1.0×1014
(1 MHZ) Dielectric constant IEC 60893-2:2003 4.0-5.5
(1MHZ)Dissipation Factor IEC 60893-2:2003 0.04-0.05
Proof Tracking Index PTI IEC 60893-2:2003 V ≥ 200
Insulation resistance after immersion 24Hrs in Water IEC 60893-2:2003 Ω ≥ 5×1010
Mechanical Properties Flexural Strength ┴ IEC 60893-2:2003 MPa ≥ 340
Charpy Impact strength // IEC 60893-2:2003 KJ/m2 ≥60
TensileStrength IEC 60893-2:2003 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 155
Toxicant Content E662 Low
Others Acetone Resistance boiled Min 30(OK)


Application of this material 

The FR4 sheet is widely used high-end insulation parts processing, FPC (flexible printed circuit-board) reinforcement sheet, planetary wheel, transformer insulation baffle, high voltage switch, precision test fixture, carbon film printing, electronic insulation parts, gasket,washer,various water sports equipment and blade-tool handle materials.

Actually , the other similar material to it is GPO-3 material , however , the mechanical strength and absorptivity resistance is better than GPO-3 material .

Super-capacitor special-purpose FR4 epoxy sheet

FR4 laminate epoxy resin fabric complex machined parts from China 1

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