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(CHINA) Xiamen Earnest Supply Chain Co.,Limited

Tel: 0086-592-5560130





Add: Room 701, Yuntai International Building, NO.102, Xiangyun 1st Road, Huli District, Xiamen, Fujian, China

FR4 Composite Rod G10 G11 Cylinders Tube Epoxy FR4

FR4 Composite Rod G10 G11 Cylinders Tube Epoxy FR4

We can provide you with FR4 Composite Rod G10 G11 Cylinders Tube Epoxy FR4 with best quality. China Earnestly Insulation Material Co., Ltd was founded in 2004. It is one of the leading China manufactuers and suppliers of laminated insulation materials. We has a full range of insulated products. Sheets & Rods from thin to extra-thick, like FR5,G10,G11,3240,GPO-3,SMC,Phenolic Sheets, etc.

Product Description:

FR4 Composite Rod G10 G11 Cylinders Tube Epoxy FR4 is a thermoset Composite Material which are made of a woven glass fabric combined with a halogen-free epoxy resin system. The product also offers superior physical properties and excellent electrical characteristics that are maintained in high-humidity conditions. In addition, it is not flame retardant and meets NEMA G-10 G11 requirements. In addition to carrying true G10 G11, China Earnestly Insulation Material Co., Ltd maintains a large inventory of FR-4, which is a common alternative to G10 G11. FR-4 is a less expensive option than G10 G11 while also being flame retardant. This new insulation material can be sawed, drilled, sanded or polished. Ideal for light weight folders without bolsters. Makes for a very tough and durable handle material.

Product Parameters:




FR4 Epoxy Rod


Consistency ≥




Water absorption rate(D-24/23) ≤




Flexural strength ≥




Compression strength(Axial) ≥




Breakdown voltage endurance Parallel to lamination in transformer oil ≥







Product Show:

FR4 Composite Rod G10 G11

Products Properties:

FR4 Composite Rod G10 G11 Cylinders Tube Epoxy FR4 is woven fiberglass soaked in an epoxy resin and then compressed and baked. It is very dense, lightweight, and impervious to water.  The advantages of this material:

Strong, stiff, tough and durable

Excellent dielectric strength

Good machinability

Light weight

Heat and water resistant

Corrosion and chemical resistant

Good mechanical strength

Excellent wear properties

Good dimensional stability

Low moisture absorption

Excellent creep resistance

China Earnestly Insulation Material Co., Ltd has sufficient stock of the fiberglass epoxy sheet due to its widely applications, to meet fast delivery for our clients.

Production Process:

Tube Epoxy FR4 Production Process

Our equipment:

FR4 Composite Rod Our Equipments

Our Factory:

G10 G11 Cylinders Our Factory

Our Packaging:

FR4 Rod Package

Our Servies:

1. Rich Experience

Professional materials background and non-metallic materials processing experiences with more than 14 years,using in industry field like transformer,generator,electric motor,etc. 

2. Provide one-stop service from raw material sheet supply to customized further processing of nonmetal insulating parts.

We can develop and produce various high standards and personalized products according to customers' requirement.

3. Pre-sales Service 

We have professional sales team to offer comprehensive technical and business consultation services. Designing and fabricating targeted products according to the special requirements of clients.

4. After-sales Service

Highly inspecting equipment in every working procedure, quality comes first.

5. Our Advantage

Competitive price,Flexible payment options,Quick speed.

Always ready for supplying the best solution for your various application.

Main Application:

With high mechanical strength, Insulation, heat resistance, electrical properties and good moisture resistance properties. Widely range of applications, for example: Suitable for using as insulating structural parts in electric equipment, such as electric generators, motors, switch board, pcb , etc.

Main Product Categories:

1. Machining Insulation Parts

2. Epoxy Glass Fiber Cloth Laminated Sheets

3. Phenolic Laminated Sheets

4. Insulation Rods&Tubes

5. Pultruded Profiles

3240 Epoxy Fiber Glass Sheet

Our Partners:

FR4 Composite Rod Our Partners


Q: Are you a trading company or a manufacturer ?

A: We are one of the leading manufacturers in the industry since year of 2004.

Q: How long is your delivery time?

A: Generally it is 3-7 days if the goods are in stock. Or it is 10-30 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: How can you guarantee the quality of mass production is same with the sample sent to me before?

A: Our warehouse staff will leave another same sample as yours. The production process will be under your requirement.

Q: What is your terms of payment ?

A: Payment≤1000USD, 100% in advance. Payment≥1000USD, 30% T/T in advance ,balance before shipment.

Contact Details:

Ms. Selina Zhang

Business Representative



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