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Epoxy Glass Cloth Laminated Sheet

Your Professional Epoxy Glass Cloth Laminated Sheet Supplier
 

Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.

 

 
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Why Choose Us

Quality Assurance

Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.

Extensive Experience

Weshare, since 2005, excels in transformer accessories and electrical engineering.

Export markets

With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.

Product Application

Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.

 

 

 

Product Description

 

Name

FR4 Epoxy Fiberglass Laminate Sheet

Base Material

Epoxy Resin + Fiber Glass

Color

Green\Yellow\Red\Black\White,etc Color can be customized according to customer requirements

Thickness

0.1mm – 300mm More than 300mm can be produced according to product requirements

Dimensions

Regular size are 1020x1220mm,1020x2040mm,1220x2440mm; Special size, we can produce and cut according to customer's requirements.

Density

1.97g/cm3 – 2.2 g/cm3

OEM

Accepted

 

Advantages of Epoxy Glass Cloth Laminated Sheet

 

FR4 Fibreglass Sheet

Electrical Insulation Properties

Epoxy glass fabric laminated sheets offer exceptional electrical insulation properties. They have a high dielectric strength, which means they can withstand high voltages without breakdown. This property ensures the safety and reliability of electrical and electronic systems.

G10 Epoxy Sheet

Thermal Stability

With their ability to withstand high temperatures, epoxy glass fabric laminated sheets provide reliable thermal insulation. They can operate in environments with elevated temperatures without any significant degradation in their electrical or mechanical properties.

FR4 Glass Epoxy Sheet Insulation

Mechanical Strength

These laminated sheets possess excellent mechanical strength, allowing them to withstand mechanical stress and vibrations. This makes them highly durable and suitable for applications that require robust materials.

 

Specification

 

Properties

Unit

Value

Flexural strength perpendicular to laminations-under normal room temperature

Mpa

≥340

Impact strength parallel to lamination

KJ/m2

≥35

Dielectric strength perprndicular to laminatioins(in oil 90±2ºC),1.0mm in thickness

MV/m

≥14.2

Breakdown voltage parellel to laminations (in oil 90±2ºC)

KV

≥40

Water absorption rate 1.6mm in thickness

mg

≤19

Insulation resistrence Impregnated in water

Ω

≥5.0x108

Density

g/cm3

1.70-1.90

 

Types of Epoxy Glass Cloth Laminated Sheet
 

G10 Epoxy Laminate Sheet
The G10 epoxy glass cloth laminate sheet is one of the most durable and versatile structural materials available. Built from a unique mix of glass fabric and epoxy resin, it produces a material that's tough, lightweight, and extremely resistant to moisture and chemicals. Hence, it is widely used in the production of machine and industrial component housings, as well as in the marine and electrical sectors.

 

Cotton Cloth-and-Epoxy Laminates
As a member of the paper-and-cloth family, XET-1 epoxy glass cloth laminate sheets are known for their balance between strength and flexibility. While cotton cloth provides some level of flexibility, the laminate retains a shape that allows it to be used in intricate detailing and shaping components.

 

FR-4 and G-10 Epoxy Laminates
The FR-4 and G-10 epoxy cloth and resin laminate sheets possess multiple similarities, while FR-4 is rated for flame resistance by Underwriters Laboratories (UL). Both of them are hardwearing and moisture-retardant and are commonly used in electrical appliances, circuit boards, and mechanical structures in a variety of industries.

 

Phenolic Laminates Featuring GPO-3 and GPO-1
GPO-3 and GPO-1 phenolic laminate sheets are uniquely constructed with glass fibers and phenolic resin, making them ideal for electrical insulation. Compared to GPO-1, which uses E-glass for its structure, GPO-3 incorporates high-performance glass fabrics for greater strength and insulation qualities.

 

Industrial Laminates with GPO-1
GPO-1 phenolic laminate sheets have remarkable durability and insulation properties. These industrial-grade sheets are ideal for use in electrical and mechanical applications, such as insulated supports and base plates in electrical equipment. Their outstanding chemical and moisture resistance makes them a long-lasting choice in extreme working conditions.

 

Applications of Epoxy Glass Cloth Laminated Sheet
 
绝缘FR4板材
 

Electrical Insulation

One of the primary applications of epoxy glass fabric laminated sheets is electrical insulation. They are widely used as insulation barriers in electrical machinery, switchgears, and transformers. These sheets provide reliable insulation, preventing the flow of electric current and protecting the equipment from short circuits.

 

Printed Circuit Boards

Epoxy glass fabric laminated sheets find extensive use in the manufacturing of printed circuit boards (PCBs). They serve as the substrate material on which electronic components are mounted. The excellent electrical insulation properties of these sheets help in preventing short circuits and ensuring the smooth functioning of electronic devices.

玻璃聚酯层压板
G11环氧玻璃层压板
 

Transformers and Electrical Equipment

Epoxy glass fabric laminated sheets are also used in the construction of transformers and other electrical equipment. They provide insulation between different windings and ensure the efficient transfer of electricity. The thermal stability of these sheets allows them to withstand the high temperatures generated in transformers during operation.

 

Aerospace Industry

In the aerospace industry, epoxy glass fabric laminated sheets are utilized for various applications. They are used in the construction of aircraft panels, control systems, and insulation for electrical components. The lightweight nature of these sheets, combined with their excellent electrical properties, makes them an ideal choice for aerospace applications.

G11层压板

 

Production process of Epoxy Glass Cloth Laminated Sheet

 

The Lamination Process: Step-by-Step Breakdown

Preparation of Materials
The lamination process begins with meticulous preparation of the raw materials. Glass fiber fabrics are cut to the required dimensions and carefully inspected for any defects or irregularities. The epoxy resin is mixed with appropriate hardeners and catalysts to achieve the desired curing characteristics. This step is crucial as it directly influences the final properties of the laminate. The mixing ratios and conditions must be precisely controlled to ensure consistent quality. Additionally, release agents are applied to the molds or forming surfaces to facilitate easy removal of the finished product.

 

Layup and Resin Impregnation
Once the materials are prepared, the layup process commences. Layers of glass fiber fabric are carefully arranged in the mold or on a flat surface, following a predetermined stacking sequence. This sequence can be optimized to achieve specific directional properties in the final product. As each layer is placed, epoxy resin is applied, ensuring thorough impregnation of the fibers. This step requires skill and precision to eliminate air pockets and ensure uniform distribution of resin throughout the laminate. Various techniques such as hand layup, spray-up, or resin infusion may be employed depending on the scale of production and desired quality.

 

Curing and Post-Processing
After the layup is complete, the assembly is subjected to a curing process. This involves applying heat and pressure to initiate and accelerate the chemical reactions within the epoxy resin. The curing parameters, including temperature, pressure, and duration, are carefully controlled to achieve optimal cross-linking of the polymer chains. This step is critical in determining the final mechanical and thermal properties of the epoxy glass fiber sheet. Following curing, the laminate undergoes post-processing steps such as trimming, sanding, or machining to achieve the desired final dimensions and surface finish. Quality control inspections are conducted throughout the process to ensure adherence to specifications and identify any defects.

 

FAQ

 

Q: What is epoxy glass laminate?

A: FR-4 glass epoxy is a laminate sheet made from a woven fiberglass substrate and a flame-retardant epoxy resin. Common applications for FR-4 include insulation in humid and dry conditions and various mechanical and electrical uses.

Q: What are the characteristics of epoxy laminates?

A: They have a wide range of properties. They possess good dimensional stability and good electrical properties and mechanical strength. They have good creep resistance and are useful over a wide temperature range (−73°C to 427°C).

Q: What is laminating epoxy used for?

A: By combining different layers of epoxy laminating resin, it is possible to create products that have increased strength, durability and attractiveness compared to traditional plastics or other materials. This makes them ideal for use in the manufacturing of furniture, surfboards, automobiles, boats and much more!

Q: How thick should laminated glass be?

A: Laminated glass thickness typically ranges from 6.38mm to 32mm, with common thicknesses including 6.38mm, 8.38mm, 10.38mm, 12.14mm, 13.52mm, and 17.52mm. The specific thickness is determined by the application and desired safety and performance characteristics.

As one of the leading epoxy glass cloth laminated sheet suppliers in China, we warmly welcome you to wholesale high-grade epoxy glass cloth laminated sheet made in China here from our factory. All our products are with high quality and competitive price.