News

  • What is Rigid Mica Sheet?

    Many people tend to confuse Rigid Mica Sheet with ordinary insulating paperboard, bakelite board and plastic sheet, yet their performance levels are vastly different. Rigid Mica Sh

    29-Jul-2027
  • What are the Irreplaceable Value of Mica Boards

    In industrial manufacturing, power & electrical equipment, new energy devices and daily household appliances, the service life and safety of equipment rarely depend on eye-catching

    27-Jul-2026
  • What are the Differences Between SMC and GPO-3

    SMC Insulation Sheet refers to Sheet Molding Compound, which is mainly composed of special yarn for SMC, unsaturated polyester resin and various fillers. With superior electrical p

    24-Jul-2026
  • Three Core Industrial Values of Mica Board – YILONG

    There is a wide range of insulation boards available on the market, including plastic boards, paper boards, bakelite boards and fiberglass boards for various applications. Nevertheless, no single material can fully replace Mica Board. The fundamental reason lies in its unrivaled balanced comprehensive performance and adaptability to complex working conditions.

    22-Jul-2026
  • The Safety Guardian for All Industries – YILONG MICA

    With balanced and comprehensive performance, Mica Board has broken the restrictions of single-industry application and been deeply applied in household appliances, traditional industry, power and electrical engineering, high-end new energy manufacturing and other fields, making it a universal all-around safety substrate.

    20-Jul-2026
  • How to identify the defective GPO-3 Insulation Boards?

    We have shared full knowledge about GPO-3 insulation board in previous articles from YILONG. This article will focus on a widely concerned topic: simple identification methods to distinguish qualified finished GPO-3 insulation boards from inferior ones. Let’s take a closer look.

    17-Jul-2026
  • GPO-3 Insulation Sheet Introduction and Applications

    GPO-3 Insulation Sheet is a rigid sheet insulating material manufactured by impregnating non-alkali glass fiber mat with unsaturated polyester resin paste together with corresponding additives, followed by hot pressing. It refers to unsaturated polyester glass fiber mat sheet material for mechanical and electrical purposes. It delivers excellent electrical properties under high humidity, favorable mechanical performance at medium temperatures, inherent flame retardancy, as well as outstanding arc resistance and tracking resistance.

    15-Jul-2026
  • FR4 Sheet (EPGC202) Typical Applications

    FR4 Sheet, also known as epoxy fiberglass sheet or flame retardant insulation board, is fabricated by impregnating fiberglass woven cloth with flame-retardant epoxy resin and hot-pressed under high temperature and pressure. It is widely utilized in high-end precision equipment that demands high safety and reliability standards.

    13-Jul-2026
  • FR4 Epoxy Sheet Application in Photovoltaic Power Generation

    FR4 fiberglass sheet is an insulation plate formed by hot pressing after impregnating woven fiberglass cloth with epoxy resin. It boasts excellent insulation performance, high mechanical strength and great temperature resistance, along with antistatic and flame-retardant features. Thanks to its comprehensive properties, it maintains stable dielectric performance in both dry and humid environments, making it one of the indispensable materials for photovoltaic power generation equipment.

    10-Jul-2026
  • Epoxy Glass Sheet Characteristics and Applications in Railway

    Epoxy Glass Sheet boasts outstanding comprehensive performance, featuring high temperature resistance, corrosion resistance, high mechanical strength, superior machinability, low water absorption, reliable insulation and excellent electrical properties. There are various types of Epoxy Glass Sheet available, including 3240, G11, FR-4, G10 and so on.

    09-Jul-2026