3640 Epoxy Tube

Production Description

3640 Epoxy Tube is made of alkali-free glass fiber used in electrical engineering as the substrate, dipped in epoxy phenolic resin and cured by heating, rolling, pressing and baking.

The heat resistance grade of the product is B grade, with high mechanical, heat resistance and electrical properties.

 

Application in Printed Circuit Board

3640 Epoxy Tube is suitable for making high-voltage insulating structural materials in the electrical industry, as radar, rocket, aircraft and other parts in the aerospace industry; in the petrochemical industry as preservatives and solvent-resistant pipelines are widely used.

 

Instructions

1）Laminated pipes are easy to absorb moisture after processing, and it is best to impregnate insulating paint for moisture-proof treatment.

2）The original packaging is stored in a dry, cool, non-smoking, ventilated room or under a shed. The storage period is 12 months from the date of leaving the factory.

 

Technical Data

No	Indicator name	Unit	Index value		TEST METHOD
1	Density: inner diameter	g/cm3	≥1.4		GB/T 5132
2	Bending strength	MPa	≥140		JB/T 3172
3	Compressive strength	MPa	≥50		GB/T 5132
4	Shear strength	MPa	≥12		JB/T 8150
5	Dielectric loss factor (50Hz)	-	≤0.03		JB/T 3172
6	Volume resistivity: normal state After soaking	Ω·m	≥1.0×1010		GB/T 10064
			≥1.0×108
7	Parallel layer to insulation resistance: normal state After soaking	Ω·m	≥1.0×104		GB/T 10064
			≥1.0×101
8	Vertical layer withstand voltage Wall thickness： 1.5mm 2.0mm 2.5mm 3.0mm	kV	Inner diameter＜25mm	Inner diameter≥25mm	JB/T 3172
			7	12
			10	14
			13	16
			15	18
9	Parallel layer direction withstand voltage	kV	25		GB/T 5132
10	Surface withstand voltage	kV	12		GB/T 5132
Remarks: Items 8 and 9 in the table are carried out in the environment of 90℃±2℃/5min in transformer oil. Item 10 in the table is performed in an environment with a withstand voltage of 1 min in normal air after being damp.

Special Note

The company strictly controls product quality in accordance with relevant product standards. Due to the diversity and variability of application conditions and many other factors, it does not rule out the need for users to conduct experiments on their own. Legally, certain properties of the product are not guaranteed to be fully applicable to a specific purpose, and the right to modify the information is reserved.

 

Picture of Factory

Factory

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J&Q Insulation Material Co., Ltd is a foreign trade company controlled by Hebei JingHong Electronic Technology Co., Ltd., which is responsible for the export business of Hebei JingHong Electronic Technology Co., Ltd. The new factory of Hebei JingHong Electronics Co., Ltd. will be officially put into production in October 2022. Mainly produce FR4 sheet, 3240 epoxy sheet, Bakelite sheet, and 3026 phenolic cotton sheet. The total annual output of the new and old two factory reaches 43,000 tons, which will be the largest insulation board factory in China.

One of our greatest advantage is the orders which are directly from us has the priority to produce first. Also, we have our own logistics company, so it can provide safe and fast service to you. What we are trying to do is providing our customers one-stop service from production to delivery.

Our strength

1. The annual production capacity of the factory is 43,000 tons, which is one of the largest insulation board manufacturers in China

2. Fully automated production workshop, product quality is stable

3. We have more than 20 years of experience in producing and selling insulating sheet, Cooperate with a number of domestic and foreign trading companies for many years.

4. Professional foreign trade team can provide perfect services

5. Have our own logistics company, provide one-stop service

Certification

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Production Process

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Exhibition

 

Packaging and Shipping

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Regular packing, Protect by Pallet

 

FAQ

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Q: Are you trading company or manufacturer ?

A: We are factory.

 

Q:What about the package of product?
A:1. Wooden pallet with carton. 2. Plastic pallet with carton. 3. Wooden wooden pallet with wooden case. 4. According to customer requirements.

Q:What's the payment?
A: Payment<=1000USD, 100% in advance

Payment>=1000USD 30%TT advance, 70% TT before shipping

Q:If I need sample,what should I do?
A:It's our pleasure to send sample for you.You can send me your delivery address by email or message.We will send you . . . free sample at first time.

Q:Can you give me a discount price?
A:It is depending on the volume. The larger the volume is; the more discount you can enjoy.

Q:Why is your price a bit higher than other Chinese suppliers?
A:To meet the requirement of different customers and areas, our factory manufactures various kinds of quality for each . . . item at a wide range of price. We can offer the products of different quality levels depending on customer’s target price and quality requirement.

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 in our company, with your company name marked on it, which our production will be based on.

Q:How can you deal with quality issues that customer feedback after receiving the goods?
A:1) Customers take photos of unqualified goods and then our sales staff will send them to Engineering Department to . verify.
2) If the issue is confirmed, our sales staff will explain the root cause and take corrective actions in coming orders.
3) Finally, we will negotiate with our customers to make some compensation.