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Most Common Uses of GPO-3 Materials

by:ZTELEC     Time: 2023-03-14

Have you heard of this material, GPO-3? Modern manufacturing utilizes a variety of materials to create the various components of a product. The GPO-3 is a thermoset plastic and one of the strongest non-metallic materials in the industry. GPO-3 material is widely used in modern manufacturing, here we will introduce its use in different fields.

Its main application areas are:

1. Electrical insulation

2. Mechanical application

3. Structural parts

Each field has different performance requirements for GPO-3. If you want to know the specific details, let’s start with its basic knowledge.

What is GPO-3 material?

GPO-3 laminate, also known as UPGM-203, is a non-metallic thermosetting polyester material, which is destined not to be melted for reuse. It is made of non-alkali glass fiber board impregnated with unsaturated polyester resin, which is made into rigid board insulation material by heating and pressing. This makes the GPO-3 material exceptionally strong and rigid, and it is generally used in sheets. It has a wide range of thickness (2-100mm) and suitable size for transportation (maximum 1220*2440mm), color: red, white, brown red. This variety makes them ideal for many fabrication projects.

Advantages of GPO-3 Materials

As a thermoset, GPO-3 has very good mechanical properties and can be used in manufacturing. As plastic-like products, these non-metallic materials do not conduct electricity, which opens the door for easy application of the material in manufacturing and other fields. The material also has high strength and heat resistance, allowing it to retain its shape under high pressure and temperature conditions. Thermosets such as GPO-3 also have excellent corrosion resistance. Even better, these materials help keep costs down, which is great for manufacturers on a tight budget.

GPO-3 Features

GPO-3 First of all, it has excellent electrical properties and structural properties. Second, it is flame retardant, arc resistant, and some GPO-3 materials can operate at temperatures up to 320°F. It even has good smoke resistance, making it ideal for some unique applications in the transportation industry. The downside is that this material can exhibit some of the brittleness common to thermoset materials.

Common uses of GPO-3

Due to its resistance to a variety of conditions including heat, electricity and shock, GPO-3 is a tough and versatile material that spans multiple industries and fields. Thermosets themselves are a common feature of many of the products we use every day, and GPO-3 is no exception. These materials are staples of modern manufacturing. The following categories are some of the areas where GPO-3 is most commonly used to manufacture parts.

Electrical insulation

These materials are non-metallic, which means they do not conduct electricity. This has led to their use in a variety of electrical and insulation products such as:1.Low voltage motor
1.Switchgear partitions and mounting panels
2.motor motor
3.voltage switch

The devices we have today would not be electrically safe without non-metallic solutions like thermoset plastics and GPO-3. These materials make circuit breakers and wires around the house safe. Electrical insulation and assemblies are easily the most common uses for GPO-3 materials.

mechanical application

In addition to being non-conductive, the additional resistance of GPO-3 also makes it ideal for a variety of mechanical applications. The material’s resistance to heat, corrosion, impact and smoke is as important as its electrical resistance. Due to its heat resistance, you can find GPO-3 materials in welding materials such as jigs. These materials are even used in splashbacks for their corrosion resistance.


GPO-3 is an excellent construction material for any structural component that requires strength and durability under stress. The material’s elasticity means it can withstand a variety of conditions and stresses, including pressure and impact. Manufacturers use it for many types of brackets and connectors, including busbar brackets, insulation brackets, and more. Its strength means it can withstand wear and tear over time, and its corrosion resistance also helps prevent unnatural damage.

GPO3 laminate features:

1.Arc resistance (greater than 180 seconds)
2.Good tracking resistance (CTI600V)
3.Temperature resistance level: 155 degrees
4.Flame retardant 94-V0 grade
5.Mechanization, high degree of automation, stable product quality and other characteristics.

GPO-3 Laminate Applications:

1.Application in circuit breakers

(1) Frame type circuit breaker: safety baffle, safety shutter, spacer liner, phase partition, etc.

(2) Application in molded case circuit breakers: interphase partitions, arc partitions in arc extinguishing chambers, etc.

2.Motor armature components, movable cover plate, slot wedge stator, fixed gasket, thin gasket, carbon brush plate in the motor
3.In the switchgear, the front end, rear end, upper end, lower end, phase partition, etc. in the partition system
4.Suitable for partitions, liners, arc extinguishers, arc extinguishers, arc extinguishers, arc partitions, terminal blocks, phase insulation, bottom partitions, contact 5.support parts for various switch cabinets; switches and transformers Structural supports, bus splints, etc.
6.Arc-resistant structural parts. DC motors
7.Where to Find GPO-3 Materials

You can find GPO-3 thermoset materials at ZTelecGroup. ZTelecGroup has a variety of non-metallic materials, including FR4, G11, GPO-3 and so on. We can help you find the right material for all your specifications, such as size, thickness, color, etc. Whether your manufacturing company needs thermoset materials, electrical insulation, mechanical applications, structural components and more, we can provide the materials your business needs. Contact ZTelecGroup today to learn more about our vast supply of materials.

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