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What is the difference of G11 and FR5 epoxy fiberglass laminates?

If you're in the market for high-performance epoxy fiberglass panels, you've likely come across the terms G11 and FR5. Both are popular choices for a variety of industrial applications, but how exactly do they differ? In this article, we will take a closer look at the key differences between G11 epoxy fiberglass board and FR5 epoxy fiberglass board.

OVERVIEW of G-11/FR5 - NEMA Grade FR5This grade is similar to G10/FR4 but has a higher operating temperature and superior mechanical properties at elevated temperatures. The main difference between NEMA Grades G11 and FR5 is that FR5 is a fire retardant grade of G11.

G11 epoxy fiberglass board

G11 is a high performance epoxy resin bonded to a glass cloth substrate. It is known for its excellent electrical properties, mechanical strength and dimensional stability.  G11 Epoxy Fiberglass Board is commonly used in applications requiring high mechanical and electrical insulation properties such as electrical insulators, electrical connectors and switchgear components.

One of the outstanding features of G11 Epoxy Fiberglass Board is its excellent heat resistance. They can withstand high operating temperatures without losing structural integrity, making them ideal for applications in demanding thermal environments. In addition, G11 sheet offers excellent resistance to moisture, chemicals and solvents, further enhancing its suitability for a variety of industrial environments.

FR5 epoxy fiberglass board

While FR5 epoxy fiberglass boards have some similarities to G11 boards, they are specifically formulated to meet flame retardant standards.  FR5 is a flame-retardant epoxy resin system reinforced with fiberglass to achieve a balance of electrical and mechanical properties with increased fire resistance. These boards are widely used in applications where fire safety is important, such as electrical panels, insulating brackets and PCB drilling templates.

The main difference between G11 and FR5 is their flame retardant properties. While G11 sheets provide excellent electrical and mechanical insulation properties, they may not provide the same level of fire resistance as FR5 sheets.  FR5 panels are designed to self-extinguish in the event of fire, making them the first choice for applications with strict fire safety regulations.

Choose the right material

When deciding between G11 and FR5 epoxy fiberglass panels, the specific requirements of your application must be carefully evaluated. If your primary concern is electrical and mechanical performance in a non-flammable environment, G11 sheet may be a more suitable choice. On the other hand, if fire safety is a priority, FR5 sheets offer the added benefit of flame retardancy without compromising electrical and mechanical properties.

Ultimately, both G11 and FR5 epoxy fiberglass panels have their own unique advantages and applications. By understanding the differences between the two materials, you can make informed decisions that meet your project's performance and safety requirements. Whether you are looking for high temperature resistance, superior electrical insulation or flame retardant properties, there is an appropriate epoxy fiberglass board to meet your specific needs.

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Post time: Mar-05-2024