3240 Epoxy Resin Sheet
Brand: Hongda
Materials: Epoxy Resin, Phenolic Resin
Nature Color: Yellow
Thickness: 0.3mm --- 100mm
Size: 1020mm*2020mm (Regular)
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
3240 Epoxy Resin Sheet is made of alkali-free E-glass cloth impregnated with epoxy resin and phenolic resin by processing under heat and pressure. It has high mechanical and dielectric properties with thermos ability, moisture resistivity and good machinability. It is also suitable under oil pressure of transformer and wet condition. 3240B sheet is similar to 3240A, but with lower properties.
Application
3240 Epoxy Resin Board is widely used in transformers, electric motors, cabinets, control boxes, electric switches, household appliances, railway, automobile, computers and medical appliance. Also Epoxy Resin Board 3240 can be processed into all kinds of insulation parts.
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
Quality Show
| We use alkali free cloth to produce 3240 Grade B 0.5mm which the surface and quality is almost same as Grade A |
| The real situation of our 3240 Grade B 10mm to 40mm quality |
Technical Data for 3240 Grade A
NO | TEST ITEMS | UNIT | TEST RESULT | TEST METHOD |
1 | Bending Strength Perpendicular to Laminations (A) | MPa | 484 | GB/T 1303.4-2009 |
2 | Bending Strength Perpendicular to Laminations (B) | MPa | 338 | |
3 | Apparent Bending Elastic Modulus (A) | MPa | 2.19*104 | |
4 | Apparent Bending Elastic Modulus (B) | MPa | 1.99*104 | |
5 | Compressive Strength Perpendicular to Laminations compressive | MPa | 401 | |
6 | Parallel layer shear strength | MPa | 31.5 | |
7 | Tensile Strength (A) | MPa | 368 | |
8 | Tensile Strength (B) | MPa | 187 | |
9 | Parallel Layer Impact Strength (Simply Supported Beam, Gap) | KJ/m² | 59.4 | |
10 | Vertical Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ25mm/φ75mm cylinder electrode system) | kV/mm | 15.5 | |
11 | Parallel Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ130mm/φ130mm flat plate electrode system) | KV | 90.0 | |
12 | Relative Permittivity (50Hz) | - | 4.90 | |
13 | Insulation Resistance after Soaking | Ω | 4.1*1013 | |
14 | Density | g/cm3 | 1.96 | |
15 | Flammability | Grade | V-0 | |
16 | Water Absorption | mg | 39.9 | |
REMARK: 1. NO.5 the sample height is (10.32~10.39) mm; 2. NO.10 the sample thickness is (2.09~2.11) mm; 3. NO.11 the sample size is (100.01~100.07) mm*(25.20~25.31) mm*(5.06~5.20) mm thickness, the electrode spacing is (25.20~25.31) mm; 4. NO.15 the sample size is (18.87~12.99) mm*(4.23~4.28) mm; 5. NO.16 the sample size is (50.39~50.51)mm*(50.37~50.50)mm * (4.24~4.27) mm . | ||||
Technical Data for 3240 Grade B
NO | TEST ITEMS | UNIT | TEST RESULT | TEST METHOD | |
1 | Density | g/cm3 | 2.07 | GB/T 1303.2-2009 | |
2 | Water Absorption | mg | 6.0 | ||
3 | Bending Strength Perpendicular to Laminations | A | MPa | 203 | |
B | 192 | ||||
4 | Modulus of Elasticity in Flexure | A | MPa | 2.12*104 | |
B | 2.38*104 | ||||
5 | Parallel Layer Impact Strength (Simply Supported Beam, Gap) | A | KJ/m² | 47.4 | |
B | 35.8 | ||||
6 | Parallel Layer Shear Strength | A | MPa | 49.8 | |
B | 52.7 | ||||
7 | Tensile Strength | A | MPa | 147 | |
B | 121 | ||||
8 | Compressive Strength Perpendicular to Laminations compressive | MPa | 438 | ||
9 | Insulation Resistance after Soaking | Ω | 2.0*109 | ||
10 | Vertical Layer Breakdown Voltage (90℃ + 2℃ oil, 20s step by step boost) | MV/m | 8.6 | ||
11 | Parallel Layer Breakdown Voltage (90℃ + 2℃ oil, 20s step by step boost) | kV | 28.0 | ||
12 | Flammability | - | V-1 | ||
13 | Deflection Temperature under Load | A | ℃ | ＞140 | |
B | ＞140 | ||||
14 | Adhesive Strength | N | 6324 | GB/T 1303.6-2009 | |
REMARK: 1. NO.2 the sample size is 50mm*50mm*50mm; 2. NO.8 the sample height is (9.05~9.56) mm; 3. NO.10 the sample thickness is (2.91~2.95)mm; 4. NO.11 the sample size is 100.00mm*5.08mm*24.10mm; | |||||
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
Certification
Production Process
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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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