Introduction to FR2 Glass Epoxy Sheet

FR2 glass epoxy sheet offers a combination of superior mechanical strength, excellent water resistance, high impact resistance, and stable electrical performance, making it a versatile and reliable material for a wide range of applications in the electrical and electronic industries.

Features of FR2 Glass Epoxy Sheet

1. Superior Mechanical Strength:

FR2 glass epoxy sheet is renowned for its exceptional mechanical strength, which is a result of its high-density structure (1.8–2.0 g/cm³). This density not only provides excellent resistance to deformation and damage but also ensures the material remains structurally sound under heavy pressure or impact. The dense internal structure minimizes porosity, enhancing the material's durability and extending its service life. This makes FR2 glass epoxy sheet an ideal choice for applications that require robust support and stability.

2. Excellent Water Resistance:

One of the standout features of FR2 glass epoxy sheet is its extremely low water absorption rate of ≤ 0.5%. This property is crucial in environments with high humidity or where the material may come into contact with moisture. The low water absorption ensures that the sheet remains dimensionally stable, preventing swelling, deformation, or degradation of its insulating properties. This is particularly important in electronic and electrical applications, where moisture intrusion can lead to short circuits or malfunctions.

3. High Flexural and Compressive Strength:

FR2 glass epoxy sheet exhibits remarkable flexural strength (≥ 340 MPa) and compressive strength (≥ 350 MPa). These properties enable the material to withstand significant bending and compressive forces without breaking or deforming. Whether used as a support structure or an insulating layer, the sheet maintains its performance under complex mechanical stresses. This makes it suitable for a wide range of applications, including those involving heavy loads or dynamic mechanical forces.

4. Outstanding Impact Resistance:

The parallel layer impact strength of FR2 glass epoxy sheet (≥ 37 kJ/m²) highlights its excellent ability to absorb and dissipate energy under sudden impact. This property ensures that the material remains intact and undamaged, even when subjected to sharp blows or impacts. This is particularly beneficial in applications such as electronic device casings and electrical insulation, where protecting internal components from external damage is critical.

5. High Shear and Tensile Strength:

FR2 glass epoxy sheet boasts high shear strength (≥ 34 MPa) and tensile strength (≥ 300 MPa). These properties are essential in maintaining the structural integrity of the material under various mechanical forces. The high tensile strength ensures that the sheet can withstand significant pulling forces without breaking, while the shear strength prevents delamination or fracture under shear forces. This makes FR2 glass epoxy sheet highly reliable in complex mechanical environments.

6. Stable Electrical Performance:

The electrical insulation properties of FR2 glass epoxy sheet are among its most important features. The material maintains stable insulation performance even in high voltage and high current environments. Its internal structure, composed of epoxy resin and glass fiber, effectively blocks the conduction of current, preventing short circuits and leakage. This stable electrical performance makes FR2 glass epoxy sheet an indispensable material in electronic and electrical equipment, ensuring the safe and reliable operation of the devices.

Applications of FR2 Glass Epoxy Sheet

1. Insulation in Electronic Equipment:

FR2 glass epoxy sheet is widely used as an insulation layer in electronic equipment. Its excellent electrical insulation properties and mechanical strength protect electronic components from short circuits and leakage. Whether used as the base insulation for circuit boards or as protective housings, FR2 glass epoxy sheet provides reliable protection, ensuring the stable operation of electronic equipment in various complex environments.

2. Support Structure for Electrical Equipment:

In electrical equipment, FR2 glass epoxy sheet serves as a support material. Its high compressive strength and bending resistance enable it to withstand large mechanical loads, providing a stable support structure for the equipment. This is particularly useful in transformers, motors, and switchgear, where the stability and reliability of the support material are critical.

3. Encapsulation of Electronic Components:

FR2 glass epoxy sheet is commonly used for encapsulating electronic components. Its low water absorption and high density protect electronic components from moisture in humid environments. Additionally, its excellent impact resistance and tensile strength prevent damage to components during transportation and use, extending their lifespan and ensuring the long-term stable operation of electronic equipment.

4. Insulation in Electrical Systems:

FR2 glass epoxy sheet is an ideal insulation material for complex electrical systems. Its stable electrical properties and high compressive strength enable it to effectively isolate conductors at different electrical potentials, preventing short circuits and arcing. Whether used as insulators in high-voltage transmission lines or as insulation layers in low-voltage distribution systems, FR2 glass epoxy sheet provides reliable insulation protection, ensuring the safe operation of electrical systems.