FR4 LAMINATES

Epoxy fiberglass laminates FR4 (T312) is one of the most widely used fiberglass-reinforced epoxy resin laminates and is the standard material used in the electronics industry.

Thickness: 0.2 mm ~ 50 mm.
Dimension: 1020 x 1220 mm, 1220 x 2440 mm
Color: Natural, Green, Yellow, Black

Key Features

Electrical Insulation

Like G10 (T311), FR4 (T312) is an excellent electrical insulator, making it perfect for the production of PCBs and other electronic components that require insulating properties.

High Mechanical Strength

FR4 (T312) offers good structural strength and rigidity, which helps prevent PCB warping and bending under mechanical stress.

Flame Retardant UL-94 V0 Grade

The “FR” in FR4 stands for Flame Retardant. This means the material has a high resistance to fire, making it a safe choice for applications where fire resistance is important.

Thermal Stability

FR4 (T312) can tolerate moderate temperatures (usually up to around 130°C) and is relatively stable under heat stress. However, it is not as heat-resistant as other materials like ceramic or metal composites.

Chemical Resistance

FR4 (T312) has good resistance to most chemicals, making it suitable for use in environments where exposure to solvents, oils, or other chemicals is a concern.

Technical Data-Sheet

Specification Data Sheet Method Unit FR4 (T312)
Flexural strength ISO 178 MPA 350 min.
Flexural modulus of elasticity ISO 178 MPA 24000 min.
Tensile strength ISO 527 MPA 300 min.
Compressive strength perpendicular ISO 604 MPA 350 min.
Impact strength (Charpy) parallel ISO 179/3C kJ/m² 45 min.
Electric strength perpendicular IEC 60243-1 (90°C in oil) KV/mm 10.6 min.
Breakdown voltage parallel IEC 60243-1 (90°C in oil) KV 45 min.
Insulation resistance after immersion IEC 60167 (in water) MOhm 5×105 min
Comparative tracking index CTI IEC 60112 CTI 200 min
Thermal endurance IEC 60216 °C 110
Water Absorption ISO 62 % 0.2 max
Flame Retardant UL 94 V0

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