FR4 Epoxy Fiberglass Laminate Sheet
Basic Information:
Brand: Hongda
Materials: Epoxy Resin
Nature Color: Light Green
Thickness: 0.3mm --- 100mm
Regular Size: 1030mm*1230mm
Custom Size: 1030mm*2030mm, 1220mm*2440mm, 1030mm*1030mm 1030mm*2070mm
Packaging: Regular packing, Protect by Pallet
Productivity: 13000 Tons per year
Transportation: Ocean, Land, Air
Payment: T/T
MOQ: 500KG
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Production Description
FR4 Epoxy Fiberglass Laminate Sheet is a made of professional electronic cloth impregnated with epoxy resin and other materials through high temperature and high pressure. It has high mechanical properties, excellent dielectric properties, good heat resistance, moisture resistance, flame retardant and good machining properties.
FR4 is not a material name, but it is an epoxy sheet of NEMA grade which means nation electrical manufactures association. The code name of FR4 is flame resistance material grade, and it means a material specification of which the resin material must be self-extinguishing after being burned. The flame-retardant grade can reach to UL94-VO, and pass six ROHS-related environmental protection tests.
Application
FR4 epoxy fiberglass laminate sheet is widely used as insulation structural parts in motors and electrical equipment, including various switches, FPC reinforced electrical insulation, carbon film printed circuit boards, computer drilling electricity, mold tools, etc. (PCB test racks), and can be used in transformer oil in humid environment.
1. Test Jig
2. Fixture PCB Testing Jig
3. Insulation Plate
4. Switch insulation Plate
5. Polish Gear
6. Mould in Cloth and Shoes
7. Insulation Part of Bakelite Sheet
8. Lithium Battery Pack
Technical Data for FR4
NO | TEST ITEMS | UNIT | TEST RESULT | TEST METHOD |
1 | Bending Strength Perpendicular to Laminations | MPa | 571 | GB/T 1303.4-2009 |
2 | Compressive Strength Perpendicular to Laminations compressive | MPa | 548 | |
3 | Parallel Layer Impact Strength (Simply Supported Beam, Gap) | KJ/m² | 57.3 | |
4 | Tensile Strength | MPa | 282 | |
5 | Vertical Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ25mm/φ75mm cylinder electrode system) | kV/mm | 16.7 | |
6 | Parallel Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ130mm/φ130mm flat plate electrode system) | kV | ＞100 | |
7 | Relative Permittivity (50HZ) | - | 5.40 | |
8 | Dielectric Dissipation Factor (50HZ) | 7.2*10-3 | ||
9 | Insulation Resistance after Soaking | Ω | 2.2*1013 | |
10 | Density | g/cm3 | 2.01 | |
11 | Water Absorption | mg | 5.3 | |
12 | Barcol Hardness | - | 76 | GB/T 3854-2005 |
13 | Flammability | Grade | V-0 | GB/T 2408-2008 |
REMARK:1. NO.2 the sample height is (5.00~5.04) mm; 2. NO.5 the sample thickness is (2.02~2.06) mm; 3. NO.6 the sample size is (100.50~100.52)mm*(25.10~25.15)mm*(5.02~5.06)mm thickness, The electrode spacing is (25.10~25.15)mm; 4. NO.11 the sample size is (49.86~49.90)mm*(49.60~49.63)mm*(2.53~2.65)mm; 5. NO.13 the sample size is (13.04~13.22)mm*(3.04~3.12)mm thickness. | ||||
Factory
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
Production Process
Exhibition
Packaging and Shipping
Regular packing, Protect by Pallet
FAQ
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.
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