FR-4 Epoxy Glass Fabric Laminated Sheet is a high-performance electrical insulation material made by laminating woven glass fabric with flame-retardant epoxy resin under heat and pressure. It offers excellent electrical insulation, mechanical strength, dimensional stability, flame resistance, and chemical resistance, making it widely used in printed circuit boards, electrical equipment, and industrial insulation applications.
FEATURE
Excellent Electrical Insulation:
Provides high dielectric strength and reliable insulation performance for demanding electrical and electronic applications.
High Mechanical Strength:
Offers excellent tensile, flexural, and impact strength for structural electrical components and insulation parts.
Flame Retardant:
Provides good flame resistance and meets common FR-4 requirements for safer electrical and electronic applications.
Excellent Dimensional Stability:
Maintains stable dimensions under temperature changes and mechanical stress for precision applications.
Good Chemical & Moisture Resistance:
Provides resistance to moisture, oils, and many chemicals, supporting reliable performance in demanding environments.
APPLICATION
Printed Circuit Boards:
Widely used as a substrate material for multilayer PCBs, rigid circuit boards, and electronic assemblies.
Electrical Insulation:
Applied in insulating washers, spacers, terminal boards, transformer components, and other electrical insulation parts.
Electronic Equipment:
Used in electronic housings, support components, fixtures, and structural insulation components.
Industrial Equipment:
Applied in motors, generators, switchgear, control panels, and other industrial electrical equipment.
Precision Mechanical Components:
Used for gears, brackets, structural parts, and other components requiring high strength, dimensional stability, and electrical insulation.
SPECIFICATION
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Item.
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Color
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Thickness
|
Density(g/cm³)
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Length(mm)
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Width(mm)
|
|
FR4-W
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Green
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0.5mm 1mm 2mm 3mm-50mm
50mm Above
|
2.1
|
1220/2440
|
1020/1220
|
|
FR4-Y
|
Yellow
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0.5mm 1mm 2mm 3mm-50mm
50mm Above
|
2.1
|
1220/2440
|
1020/1220
|
|
FR4-BK
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Black
|
0.5mm 1mm 2mm 3mm-50mm
50mm Above
|
2.1
|
1220/2440
|
1020/1220
|
*Specific products could be made according to customers’requirements.
PERFORMANCE
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(FR-4)Epoxy Glass Fabric Laminated Sheet
|
|
Properties
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Value
|
|
Density
|
2.1g/cm3
|
|
Flexural Strength perpendicular to laminations
|
500Mpa
|
|
Impact Strength parallel to laminations (Charpy)
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51KJ/m2
|
|
Insulation Resistance after immersion in water(24hours)
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6.8x1012
|
|
Dissipation Factor(1MHz)
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0.02
|
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Permittivity (1MHz)
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4.7
|
|
Dielectric strength perpendicular to laminations(in 90±2℃ transformer oil, 2 mm in thickness)
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17MV/m
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|
Breakdown voltage parallel to laminations (in 90±2℃ transformer oil)
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45KV
|
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Temperature Class
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F
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|
Standard
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IEC 60893-3-2
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