In today’s electronic era, electronic products are deeply integrated into our daily lives and are evolving at a rapid pace. It is difficult to imagine modern life without them. Epoxy glass sheets are a key insulating material widely used in electronic products. There are many types, including FR-4 Epoxy Glass Sheet, 3240 Epoxy Sheet, G11 Epoxy Glass Sheet, and G10 Epoxy Glass Sheet, each designed to meet different application requirements. Among them, G11 Epoxy Glass Sheet is considered one of the higher-performance materials, and it is important to understand its characteristics before use.

G11 Epoxy Glass Sheet is manufactured mainly from epoxy resin and fiberglass fabric. Multiple layers of fiberglass fabric are impregnated with epoxy resin and then pressed under high temperature to form a rigid laminated material. High-quality G11 Epoxy Glass Sheet features a smooth surface without rough edges, black spots, or scratches, with uniform color and thickness, tight tolerances, and excellent mechanical properties. In addition, it offers outstanding advantages such as high temperature resistance, flame retardancy, and low water absorption.
During operation, electronic equipment often generates significant heat. If the insulating components cannot withstand high temperatures, they may become damaged, and in severe cases, the entire circuit system can be affected. G11 Epoxy Glass Sheet has excellent heat resistance, ensuring stable performance even in high-temperature environments. In addition, it also provides flame-retardant properties, helping to prevent the spread of fire in extreme conditions.
Moisture resistance is another critical factor in electronic applications. Water exposure can severely damage most electronic products, often making them unusable. G11 Epoxy Glass Sheet has very low water absorption—only about 0.09% after 24 hours of immersion—allowing it to perform reliably in humid environments and even in oil-immersed conditions.
Some people may think G11 refers to a specific model, but in fact it represents a material grade classification. G11 Epoxy Glass Sheet is mainly used for manufacturing electrical and motor insulation components, high-voltage switchgear, terminal boards, and insulating spacers.
If you are looking for G11 Epoxy Glass Sheet, please feel free to contact YILONG for professional consultation and procurement support. YILONG is committed to providing high-quality insulation material solutions for global industrial applications.
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