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FR4 Laminate Sheet is a glass fabric reinforcement in an epoxy resin binder. The natural color is light green. It is the most versatile laminate with extremely high mechanical strength, good dielectric loss properties, and good electric strength properties under both dry and humid conditions. It certifies to NEMA FR4 ;
Characteristics:
(1) Good mechanical workability
(2) Good flatness, smooth surface,no pits
(3) Good heat resistance and moisture resistance
(4) In high temperature electric performance is stable
(5) Higher mechanical properties and dielectric properties
(6) In the middle temperature with high mechanical properties
Application:
(1) Used in mechanical, electrical and electronic high insulation structure parts
(2) Used in high-performance electrical insulation requirements,such as the FPC Stiffener, PCB drilling pads,fiberglass meson,potentiometer,carbon film,printed glass fiber,precision planetary gear (chip grind),precision test plates,electrical (electrical) equipment insulation stays baffle plate insulation,transformer insulation boards,electrical insulation,grinding gears , electronic switches,insulation board and so on;
Techinical Data Sheet:
Item | Unit | Value |
FR4 sheet | ||
Density | g/cm3 | 1.7-1.9 |
Flexural strength perpendicular to lamination under normal conditions ≥ | MPa | 390 |
Bonding strength (≥10mm in thickness) ≥ | N | 6500 |
Impact strength parallel to lamination (charpy) ≥ | kJ/m2 | 37 |
Voltage endurance perpendicular to lamination in transformer oil 1 minute at 90±2oC, Thickness1.0mm ≥ |
kV/mm |
14.2 |
Voltage endurance parallel to lamination under normal conditions ≥ | kV | 45 |
Insulation resistance after impregnated in water ≥ | MΩ | 5×104 |
Dissipation factor ≤ 50Hz: 1MHz: | -
|
0.04 0.04 |
Relative dielectric constant ≤ 50Hz: 1MHz: | -
|
4.6 4.6 |
Water absorption rate ≤ | % | 0.10 |
Flammability | - | FV0 |
The services you can enjoy from LESON
Pre-sale consultation
ⅠQuick response on inquires
ⅡConsultation on product properties
Ⅲ Advice of material selection
After sale service
Ⅰ Immediate check of shipping status
ⅡGuide on how to use produts properly
Ⅲ Effective solutions to customer complaints
Advantages
1.We are specialized in this industry for more than 20 years, So that ripe experience is gained and manufacturing engineering can be well controlled.
2. We can design and produce the workpiece according to the customers’ drawings or samples.
3. We have our own professional and technical engineers to give you before and after sale technical support.
4. We can delivery the goods according to order on time.
5. We will try our best to offer a total solution for you.
R&D Center:
Inspection Instrument:
Certificates:
Flow Chart:
Raw Material:
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