FR4 Glassfiber Black Sheet
2 month ago
Product details
FR4 (Flame Retardant 4) is a glass fiber reinforced epoxy resin (GFRP) composite material made of epoxy resin and glass fiber through a molding or lamination process. Due to its excellent temperature resistance, electrical insulation, mechanical strength and cost advantage, it has become an "industrial basic material" in the fields of electronics, machinery, automobiles, etc.
Core features of FR4 Glassfiber Sheet
1. Physical and mechanical properties
High modulus and strength: tensile strength 80~150MPa, elastic modulus 20~30GPa.
Temperature resistance: long-term use temperature of ordinary type is 120~150℃, high temperature type can reach 180~200℃ (continuous working condition);
Low hygroscopicity: equilibrium hygroscopicity <0.1%, good dimensional stability;
High hardness: Rockwell hardness (HRM) 80~100.
2. Electrical properties
Excellent electrical insulation: dielectric constant (1kHz) 4.5~7.0 (low loss), breakdown voltage ≥15kV/mm (applicable to high voltage scenarios);
Arc resistance: ≥180s (UL standard), suitable for electronic and electrical insulation parts.
3. Chemical properties
Chemical corrosion resistance: resistant to weak acids, weak alkalis, salt solutions, and organic solvents;
Aging resistance: UV resistance (surface coating required), ozone resistance, outdoor life of 5 to 10 years (no serious yellowing).
4. Processing characteristics
Easy to process: can be cut, drilled, and polished without special equipment;
Formability: supports molding, lamination and other processes, suitable for complex shapes.
Core advantages of G10 FR4 Glassfiber Sheet
1. Performance advantage: surpassing ordinary plastics and comparable to metal
High specific strength: strength (100MPa), density (1.3~1.4g/cm³), suitable for lightweight and high-strength scenarios;
Heat and corrosion resistance: still maintain rigidity in a long-term 150℃ environment, resistant to weak acids and alkalis;
Reliable electrical insulation: breakdown voltage (15kV/mm), is the "insulation benchmark" for electronic equipment.
2. Cost advantage: outstanding cost performance
Low raw material cost: combination of glass fiber and epoxy resin, low cost;
Low processing cost: no high-temperature sintering or precision casting is required, compression molding is sufficient, suitable for large-scale production.
3. Wide application: covering the needs of multiple fields
Electronic and electrical: circuit board substrate (PCB), motor insulation parts, connector housing; Mechanical manufacturing: bearing cage, guide rail slider, gear; Automobile industry: engine peripheral parts, interior bracket, headlight base; Industrial equipment: instrument operation panel, fixture, mold insert.
Notes:
Selection and matching: select the temperature resistance grade according to the working conditions;
Surface treatment: keep the original surface (epoxy resin insulation) when insulation is required; apply coupling agent when bonding is required;
Processing specifications: avoid high speed <1500rpm when drilling to prevent glass fiber burrs; grind the edges after cutting to prevent cuts;
Storage conditions: store in a sealed, dry and ventilated place, away from direct sunlight.
FR4 fiberglass plastic board has become an "industrial basic material" in the fields of electronics, machinery, and automobiles due to its comprehensive advantages of high specific strength, heat and corrosion resistance, reliable electrical insulation, and low cost and easy processing. Its applications range from tiny electronic components to large industrial equipment, covering almost all scenarios in modern industry, and it is a model of the balance between "performance and cost". Choosing FR4 is essentially choosing a "reliable, economical, and durable" industrial solution.
We offer not only FR4 G10 Epoxy Fiberglass sheet and FR4 G10 Epoxy Fiberglass Rod, but also ESD glass fiber Sheet and FR4 copper clad laminate.Contact us for more details and we can give you more professional advice.
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